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char = d;code = 100
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char = m;code = 109
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char = n;code = 110
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char = N;code = 78
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char = t;code = 116
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char = C;code = 67
char = h;code = 104
char = i;code = 105
char = n;code = 110
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char = .;code = 46
result sql = The epidemiology of adolescent acne in North East China.
The epidemiology of adolescent acne in North East China.
char = <;code = 60
char = b;code = 98
char = >;code = 62
char = B;code = 66
char = A;code = 65
char = C;code = 67
char = K;code = 75
char = G;code = 71
char = R;code = 82
char = O;code = 79
char = U;code = 85
char = N;code = 78
char = D;code = 68
char = ;code = 32
char = :;code = 58
char = ;code = 32
char = <;code = 60
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char = A;code = 65
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char = e;code = 101
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char = m;code = 109
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char = a;code = 97
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char = s;code = 115
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char = e;code = 101
char = e;code = 101
char = m;code = 109
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char = n;code = 110
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char = q;code = 113
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char = y;code = 121
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char = o;code = 111
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char = ;code = 32
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char = f;code = 102
char = e;code = 101
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char = i;code = 105
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char = t;code = 116
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char = o;code = 111
char = l;code = 108
char = o;code = 111
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char = ;code = 32
char = n;code = 110
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char = t;code = 116
char = ;code = 32
char = f;code = 102
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char = l;code = 108
char = l;code = 108
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char = c;code = 99
char = l;code = 108
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char = f;code = 102
char = i;code = 105
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char = .;code = 46
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char = >;code = 62
char = <;code = 60
char = b;code = 98
char = r;code = 114
char = /;code = 47
char = >;code = 62
char = <;code = 60
char = b;code = 98
char = >;code = 62
char = O;code = 79
char = B;code = 66
char = J;code = 74
char = E;code = 69
char = C;code = 67
char = T;code = 84
char = I;code = 73
char = V;code = 86
char = E;code = 69
char = ;code = 32
char = :;code = 58
char = ;code = 32
char = <;code = 60
char = /;code = 47
char = b;code = 98
char = >;code = 62
char = T;code = 84
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = a;code = 97
char = i;code = 105
char = m;code = 109
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = s;code = 115
char = t;code = 116
char = u;code = 117
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char = w;code = 119
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char = ;code = 32
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char = o;code = 111
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char = d;code = 100
char = e;code = 101
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char = c;code = 99
char = r;code = 114
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char = b;code = 98
char = e;code = 101
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char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = e;code = 101
char = p;code = 112
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char = d;code = 100
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char = o;code = 111
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char = e;code = 101
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char = ;code = 32
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char = N;code = 78
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char = h;code = 104
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char = E;code = 69
char = a;code = 97
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char = C;code = 67
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char = a;code = 97
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char = i;code = 105
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char = p;code = 112
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char = c;code = 99
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char = o;code = 111
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char = ;code = 32
char = g;code = 103
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char = e;code = 101
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char = a;code = 97
char = l;code = 108
char = ;code = 32
char = f;code = 102
char = a;code = 97
char = c;code = 99
char = t;code = 116
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char = r;code = 114
char = s;code = 115
char = ;code = 32
char = o;code = 111
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char = ;code = 32
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char = h;code = 104
char = e;code = 101
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char = a;code = 97
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char = h;code = 104
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char = g;code = 103
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char = e;code = 101
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char = i;code = 105
char = s;code = 115
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char = o;code = 111
char = f;code = 102
char = ;code = 32
char = a;code = 97
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char = e;code = 101
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char = <;code = 60
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char = /;code = 47
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char = <;code = 60
char = b;code = 98
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char = M;code = 77
char = E;code = 69
char = T;code = 84
char = H;code = 72
char = O;code = 79
char = D;code = 68
char = S;code = 83
char = ;code = 32
char = :;code = 58
char = ;code = 32
char = <;code = 60
char = /;code = 47
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char = >;code = 62
char = D;code = 68
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char = t;code = 116
char = a;code = 97
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char = e;code = 101
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char = e;code = 101
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char = o;code = 111
char = m;code = 109
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char = 5;code = 53
char = 6;code = 54
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char = 6;code = 54
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char = d;code = 100
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char = g;code = 103
char = r;code = 114
char = a;code = 97
char = d;code = 100
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char = a;code = 97
char = t;code = 116
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = (;code = 40
char = 2;code = 50
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char = 2;code = 50
char = 0;code = 48
char = ;code = 32
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char = s;code = 115
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char = 7;code = 55
char = 6;code = 54
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char = r;code = 114
char = o;code = 111
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char = );code = 41
char = ;code = 32
char = u;code = 117
char = s;code = 115
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char = n;code = 110
char = g;code = 103
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char = o;code = 111
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char = n;code = 110
char = a;code = 97
char = i;code = 105
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char = T;code = 84
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char = e;code = 101
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char = s;code = 115
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char = s;code = 115
char = s;code = 115
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char = s;code = 115
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char = u;code = 117
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char = F;code = 70
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char = R;code = 82
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char = S;code = 83
char = U;code = 85
char = L;code = 76
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char = S;code = 83
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char = o;code = 111
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char = %;code = 37
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char = 9;code = 57
char = .;code = 46
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char = ;code = 32
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char = d;code = 100
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char = ;code = 32
char = (;code = 40
char = P;code = 80
char = ;code = 32
char = <;code = 60
char = ;code = 32
char = 0;code = 48
char = .;code = 46
char = 0;code = 48
char = 0;code = 48
char = 1;code = 49
char = );code = 41
char = .;code = 46
char = ;code = 32
char = T;code = 84
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = p;code = 112
char = r;code = 114
char = e;code = 101
char = v;code = 118
char = a;code = 97
char = l;code = 108
char = e;code = 101
char = n;code = 110
char = c;code = 99
char = e;code = 101
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = a;code = 97
char = c;code = 99
char = n;code = 110
char = e;code = 101
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = f;code = 102
char = i;code = 105
char = r;code = 114
char = s;code = 115
char = t;code = 116
char = -;code = 45
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = s;code = 115
char = e;code = 101
char = c;code = 99
char = o;code = 111
char = n;code = 110
char = d;code = 100
char = -;code = 45
char = d;code = 100
char = e;code = 101
char = g;code = 103
char = r;code = 114
char = e;code = 101
char = e;code = 101
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = l;code = 108
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = v;code = 118
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = a;code = 97
char = c;code = 99
char = n;code = 110
char = e;code = 101
char = ;code = 32
char = p;code = 112
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = s;code = 115
char = ;code = 32
char = w;code = 119
char = a;code = 97
char = s;code = 115
char = ;code = 32
char = 2;code = 50
char = 2;code = 50
char = .;code = 46
char = 5;code = 53
char = %;code = 37
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = 7;code = 55
char = .;code = 46
char = 1;code = 49
char = 9;code = 57
char = %;code = 37
char = ,;code = 44
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = s;code = 115
char = p;code = 112
char = e;code = 101
char = c;code = 99
char = t;code = 116
char = i;code = 105
char = v;code = 118
char = e;code = 101
char = l;code = 108
char = y;code = 121
char = ,;code = 44
char = ;code = 32
char = s;code = 115
char = i;code = 105
char = g;code = 103
char = n;code = 110
char = i;code = 105
char = f;code = 102
char = i;code = 105
char = c;code = 99
char = a;code = 97
char = n;code = 110
char = t;code = 116
char = l;code = 108
char = y;code = 121
char = ;code = 32
char = h;code = 104
char = i;code = 105
char = g;code = 103
char = h;code = 104
char = e;code = 101
char = r;code = 114
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = a;code = 97
char = n;code = 110
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = n;code = 110
char = t;code = 116
char = r;code = 114
char = o;code = 111
char = l;code = 108
char = s;code = 115
char = ;code = 32
char = (;code = 40
char = P;code = 80
char = ;code = 32
char = <;code = 60
char = ;code = 32
char = 0;code = 48
char = .;code = 46
char = 0;code = 48
char = 0;code = 48
char = 1;code = 49
char = );code = 41
char = .;code = 46
char = ;code = 32
char = H;code = 72
char = e;code = 101
char = r;code = 114
char = i;code = 105
char = t;code = 116
char = a;code = 97
char = b;code = 98
char = i;code = 105
char = l;code = 108
char = i;code = 105
char = t;code = 116
char = y;code = 121
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = a;code = 97
char = d;code = 100
char = o;code = 111
char = l;code = 108
char = e;code = 101
char = s;code = 115
char = c;code = 99
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = ;code = 32
char = a;code = 97
char = c;code = 99
char = n;code = 110
char = e;code = 101
char = ;code = 32
char = w;code = 119
char = a;code = 97
char = s;code = 115
char = ;code = 32
char = 7;code = 55
char = 8;code = 56
char = .;code = 46
char = 4;code = 52
char = 7;code = 55
char = ;code = 32
char = +;code = 43
char = /;code = 47
char = -;code = 45
char = ;code = 32
char = 2;code = 50
char = .;code = 46
char = 0;code = 48
char = 5;code = 53
char = %;code = 37
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = f;code = 102
char = i;code = 105
char = r;code = 114
char = s;code = 115
char = t;code = 116
char = -;code = 45
char = d;code = 100
char = e;code = 101
char = g;code = 103
char = r;code = 114
char = e;code = 101
char = e;code = 101
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = l;code = 108
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = v;code = 118
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = 7;code = 55
char = 5;code = 53
char = .;code = 46
char = 0;code = 48
char = 5;code = 53
char = ;code = 32
char = +;code = 43
char = /;code = 47
char = -;code = 45
char = ;code = 32
char = 3;code = 51
char = .;code = 46
char = 1;code = 49
char = 8;code = 56
char = %;code = 37
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = s;code = 115
char = e;code = 101
char = c;code = 99
char = o;code = 111
char = n;code = 110
char = d;code = 100
char = -;code = 45
char = d;code = 100
char = e;code = 101
char = g;code = 103
char = r;code = 114
char = e;code = 101
char = e;code = 101
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = l;code = 108
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = v;code = 118
char = e;code = 101
char = s;code = 115
char = .;code = 46
char = ;code = 32
char = R;code = 82
char = i;code = 105
char = s;code = 115
char = k;code = 107
char = ;code = 32
char = f;code = 102
char = a;code = 97
char = c;code = 99
char = t;code = 116
char = o;code = 111
char = r;code = 114
char = s;code = 115
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = a;code = 97
char = c;code = 99
char = n;code = 110
char = e;code = 101
char = ;code = 32
char = s;code = 115
char = u;code = 117
char = f;code = 102
char = f;code = 102
char = e;code = 101
char = r;code = 114
char = s;code = 115
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = c;code = 99
char = l;code = 108
char = u;code = 117
char = d;code = 100
char = e;code = 101
char = ;code = 32
char = (;code = 40
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = d;code = 100
char = e;code = 101
char = s;code = 115
char = c;code = 99
char = e;code = 101
char = n;code = 110
char = d;code = 100
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = o;code = 111
char = r;code = 114
char = d;code = 100
char = e;code = 101
char = r;code = 114
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = o;code = 111
char = c;code = 99
char = c;code = 99
char = u;code = 117
char = r;code = 114
char = r;code = 114
char = e;code = 101
char = n;code = 110
char = c;code = 99
char = e;code = 101
char = );code = 41
char = ,;code = 44
char = ;code = 32
char = a;code = 97
char = c;code = 99
char = n;code = 110
char = e;code = 101
char = ;code = 32
char = f;code = 102
char = a;code = 97
char = m;code = 109
char = i;code = 105
char = l;code = 108
char = y;code = 121
char = ;code = 32
char = h;code = 104
char = i;code = 105
char = s;code = 115
char = t;code = 116
char = o;code = 111
char = r;code = 114
char = y;code = 121
char = ,;code = 44
char = ;code = 32
char = m;code = 109
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = s;code = 115
char = t;code = 116
char = r;code = 114
char = e;code = 101
char = s;code = 115
char = s;code = 115
char = ,;code = 44
char = ;code = 32
char = m;code = 109
char = e;code = 101
char = n;code = 110
char = s;code = 115
char = t;code = 116
char = r;code = 114
char = u;code = 117
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = d;code = 100
char = i;code = 105
char = s;code = 115
char = o;code = 111
char = r;code = 114
char = d;code = 100
char = e;code = 101
char = r;code = 114
char = ,;code = 44
char = ;code = 32
char = f;code = 102
char = r;code = 114
char = e;code = 101
char = q;code = 113
char = u;code = 117
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = s;code = 115
char = o;code = 111
char = m;code = 109
char = n;code = 110
char = i;code = 105
char = a;code = 97
char = ,;code = 44
char = ;code = 32
char = h;code = 104
char = i;code = 105
char = g;code = 103
char = h;code = 104
char = ;code = 32
char = f;code = 102
char = a;code = 97
char = t;code = 116
char = ;code = 32
char = d;code = 100
char = i;code = 105
char = e;code = 101
char = t;code = 116
char = ,;code = 44
char = ;code = 32
char = b;code = 98
char = e;code = 101
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = m;code = 109
char = a;code = 97
char = l;code = 108
char = e;code = 101
char = ,;code = 44
char = ;code = 32
char = d;code = 100
char = y;code = 121
char = s;code = 115
char = m;code = 109
char = e;code = 101
char = n;code = 110
char = o;code = 111
char = r;code = 114
char = r;code = 114
char = h;code = 104
char = o;code = 111
char = e;code = 101
char = a;code = 97
char = ,;code = 44
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = x;code = 120
char = i;code = 105
char = e;code = 101
char = t;code = 116
char = y;code = 121
char = ,;code = 44
char = ;code = 32
char = s;code = 115
char = l;code = 108
char = e;code = 101
char = e;code = 101
char = p;code = 112
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = <;code = 60
char = ;code = 32
char = 8;code = 56
char = ;code = 32
char = h;code = 104
char = ;code = 32
char = p;code = 112
char = e;code = 101
char = r;code = 114
char = ;code = 32
char = d;code = 100
char = a;code = 97
char = y;code = 121
char = ,;code = 44
char = ;code = 32
char = d;code = 100
char = e;code = 101
char = p;code = 112
char = r;code = 114
char = e;code = 101
char = s;code = 115
char = s;code = 115
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = ,;code = 44
char = ;code = 32
char = f;code = 102
char = r;code = 114
char = i;code = 105
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = f;code = 102
char = o;code = 111
char = o;code = 111
char = d;code = 100
char = ,;code = 44
char = ;code = 32
char = s;code = 115
char = t;code = 116
char = u;code = 117
char = d;code = 100
char = y;code = 121
char = ;code = 32
char = p;code = 112
char = r;code = 114
char = e;code = 101
char = s;code = 115
char = s;code = 115
char = u;code = 117
char = r;code = 114
char = e;code = 101
char = ,;code = 44
char = ;code = 32
char = s;code = 115
char = p;code = 112
char = i;code = 105
char = c;code = 99
char = y;code = 121
char = ;code = 32
char = f;code = 102
char = o;code = 111
char = o;code = 111
char = d;code = 100
char = ,;code = 44
char = ;code = 32
char = o;code = 111
char = i;code = 105
char = l;code = 108
char = y;code = 121
char = ;code = 32
char = s;code = 115
char = k;code = 107
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = m;code = 109
char = i;code = 105
char = x;code = 120
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = t;code = 116
char = y;code = 121
char = p;code = 112
char = e;code = 101
char = ;code = 32
char = s;code = 115
char = k;code = 107
char = i;code = 105
char = n;code = 110
char = .;code = 46
char = ;code = 32
char = P;code = 80
char = r;code = 114
char = o;code = 111
char = t;code = 116
char = e;code = 101
char = c;code = 99
char = t;code = 116
char = i;code = 105
char = v;code = 118
char = e;code = 101
char = ;code = 32
char = f;code = 102
char = a;code = 97
char = c;code = 99
char = t;code = 116
char = o;code = 111
char = r;code = 114
char = s;code = 115
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = c;code = 99
char = l;code = 108
char = u;code = 117
char = d;code = 100
char = e;code = 101
char = ;code = 32
char = (;code = 40
char = p;code = 112
char = r;code = 114
char = e;code = 101
char = s;code = 115
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = d;code = 100
char = e;code = 101
char = s;code = 115
char = c;code = 99
char = e;code = 101
char = n;code = 110
char = d;code = 100
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = o;code = 111
char = r;code = 114
char = d;code = 100
char = e;code = 101
char = r;code = 114
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = o;code = 111
char = c;code = 99
char = c;code = 99
char = u;code = 117
char = r;code = 114
char = r;code = 114
char = e;code = 101
char = n;code = 110
char = c;code = 99
char = e;code = 101
char = );code = 41
char = ;code = 32
char = d;code = 100
char = r;code = 114
char = y;code = 121
char = ;code = 32
char = s;code = 115
char = k;code = 107
char = i;code = 105
char = n;code = 110
char = ,;code = 44
char = ;code = 32
char = n;code = 110
char = e;code = 101
char = u;code = 117
char = t;code = 116
char = r;code = 114
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = s;code = 115
char = k;code = 107
char = i;code = 105
char = n;code = 110
char = ,;code = 44
char = ;code = 32
char = f;code = 102
char = r;code = 114
char = e;code = 101
char = q;code = 113
char = u;code = 117
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = ;code = 32
char = f;code = 102
char = r;code = 114
char = u;code = 117
char = i;code = 105
char = t;code = 116
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = n;code = 110
char = s;code = 115
char = u;code = 117
char = m;code = 109
char = p;code = 112
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = m;code = 109
char = p;code = 112
char = u;code = 117
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = ;code = 32
char = a;code = 97
char = c;code = 99
char = c;code = 99
char = e;code = 101
char = s;code = 115
char = s;code = 115
char = ;code = 32
char = t;code = 116
char = i;code = 105
char = m;code = 109
char = e;code = 101
char = ;code = 32
char = <;code = 60
char = ;code = 32
char = 2;code = 50
char = ;code = 32
char = h;code = 104
char = ;code = 32
char = d;code = 100
char = a;code = 97
char = i;code = 105
char = l;code = 108
char = y;code = 121
char = .;code = 46
char = <;code = 60
char = b;code = 98
char = r;code = 114
char = /;code = 47
char = >;code = 62
char = <;code = 60
char = b;code = 98
char = r;code = 114
char = /;code = 47
char = >;code = 62
char = <;code = 60
char = b;code = 98
char = >;code = 62
char = C;code = 67
char = O;code = 79
char = N;code = 78
char = C;code = 67
char = L;code = 76
char = U;code = 85
char = S;code = 83
char = I;code = 73
char = O;code = 79
char = N;code = 78
char = ;code = 32
char = :;code = 58
char = ;code = 32
char = <;code = 60
char = /;code = 47
char = b;code = 98
char = >;code = 62
char = A;code = 65
char = d;code = 100
char = o;code = 111
char = l;code = 108
char = e;code = 101
char = s;code = 115
char = c;code = 99
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = ;code = 32
char = a;code = 97
char = c;code = 99
char = n;code = 110
char = e;code = 101
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = c;code = 99
char = l;code = 108
char = u;code = 117
char = d;code = 100
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = a;code = 97
char = ;code = 32
char = f;code = 102
char = a;code = 97
char = m;code = 109
char = i;code = 105
char = l;code = 108
char = i;code = 105
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = g;code = 103
char = e;code = 101
char = n;code = 110
char = e;code = 101
char = t;code = 116
char = i;code = 105
char = c;code = 99
char = ;code = 32
char = p;code = 112
char = r;code = 114
char = e;code = 101
char = d;code = 100
char = i;code = 105
char = s;code = 115
char = p;code = 112
char = o;code = 111
char = s;code = 115
char = i;code = 105
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = .;code = 46
char = ;code = 32
char = A;code = 65
char = d;code = 100
char = d;code = 100
char = i;code = 105
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = e;code = 101
char = n;code = 110
char = v;code = 118
char = i;code = 105
char = r;code = 114
char = o;code = 111
char = n;code = 110
char = m;code = 109
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = f;code = 102
char = a;code = 97
char = c;code = 99
char = t;code = 116
char = o;code = 111
char = r;code = 114
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = p;code = 112
char = s;code = 115
char = y;code = 121
char = c;code = 99
char = h;code = 104
char = o;code = 111
char = l;code = 108
char = o;code = 111
char = g;code = 103
char = i;code = 105
char = c;code = 99
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = s;code = 115
char = t;code = 116
char = r;code = 114
char = e;code = 101
char = s;code = 115
char = s;code = 115
char = ,;code = 44
char = ;code = 32
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result sql = BACKGROUND : Adolescent acne impacts self-esteem and quality of life in adolescents and its aetiology is not fully clarified.

OBJECTIVE : The aim of this study was to describe the epidemiological features of adolescent acne in North East China and determine the impact of genetic and environmental factors on the pathogenesis of acne.

METHODS : Data were collected from 5696 undergraduates (2920 patients and 2776 controls) using questionnaire. The survey data were analysed using spss version 13.0 and heritability of adolescent acne was calculated using Falconer's method.

RESULTS : Total prevalence of adolescent acne was 51.30% (52.74% in males, 49.65% in females). The difference between genders was statistically significant (P < 0.05). Adolescents with a family history of acne had earlier age of onset (P < 0.001). The prevalence of acne in first- and second-degree relatives of acne patients was 22.5% and 7.19%, respectively, significantly higher than in controls (P < 0.001). Heritability of adolescent acne was 78.47 +/- 2.05% in first-degree relatives and 75.05 +/- 3.18% in second-degree relatives. Risk factors to the acne suffers include (in descending order of occurrence), acne family history, mental stress, menstrual disorder, frequent insomnia, high fat diet, being male, dysmenorrhoea, anxiety, sleeping < 8 h per day, depression, fried food, study pressure, spicy food, oily skin and mixed type skin. Protective factors include (presented in descending order of occurrence) dry skin, neutral skin, frequent fruit consumption and computer access time < 2 h daily.

CONCLUSION : Adolescent acne includes a familial genetic predisposition. Additional environmental factors of psychological stress, skin oiliness and high caloric diets may also contribute to the onset of acne in Chinese adolescents.

Publication: J Eur Acad Dermatol Venereol 2010 Aug ;24(8)::953-7. :doi: 10.1111/j.1468-3083.2010.03590.x.
Publication Date: 2010 Aug
Study Author(s): Wei, B;Pang, Y;Zhu, H;Qu, L;Xiao, T;Wei, H-C;Chen, H-D;He, C-D;
Institution: Department of Dermatology, No.1 Hospital of China Medical University; Shenyang, China.
Shortcut link to this study:
BACKGROUND : Adolescent acne impacts self-esteem and quality of life in adolescents and its aetiology is not fully clarified.

OBJECTIVE : The aim of this study was to describe the epidemiological features of adolescent acne in North East China and determine the impact of genetic and environmental factors on the pathogenesis of acne.

METHODS : Data were collected from 5696 undergraduates (2920 patients and 2776 controls) using questionnaire. The survey data were analysed using spss version 13.0 and heritability of adolescent acne was calculated using Falconer's method.

RESULTS : Total prevalence of adolescent acne was 51.30% (52.74% in males, 49.65% in females). The difference between genders was statistically significant (P < 0.05). Adolescents with a family history of acne had earlier age of onset (P < 0.001). The prevalence of acne in first- and second-degree relatives of acne patients was 22.5% and 7.19%, respectively, significantly higher than in controls (P < 0.001). Heritability of adolescent acne was 78.47 +/- 2.05% in first-degree relatives and 75.05 +/- 3.18% in second-degree relatives. Risk factors to the acne suffers include (in descending order of occurrence), acne family history, mental stress, menstrual disorder, frequent insomnia, high fat diet, being male, dysmenorrhoea, anxiety, sleeping < 8 h per day, depression, fried food, study pressure, spicy food, oily skin and mixed type skin. Protective factors include (presented in descending order of occurrence) dry skin, neutral skin, frequent fruit consumption and computer access time < 2 h daily.

CONCLUSION : Adolescent acne includes a familial genetic predisposition. Additional environmental factors of psychological stress, skin oiliness and high caloric diets may also contribute to the onset of acne in Chinese adolescents.
PMID: 20337811

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