of;
Occupational;
Medicine;
and;
Environmental;
Health,;
School;
of;
Public;
Health,;
Nanjing;
Medical;
University,;
Nanjing;
210029,;
Jiangsu;
Province,;
China;
of;
Occupational;
Health,;
General;
Hospital;
of;
Xuzhou;
Mining;
Business;
Group;
Co.,;
Ltd.;
Xuzhou;
221006,;
Jiangsu;
Province,;
China;
转化生长因子; 基因变异; 尘肺; 煤工; 风险; logistic回归分析; 限制性片段长度多态性; 基因型频率;