Department of Occupational and Environmental Health;
School of Public Health;
Peking University Health Science Center;
Beijing 100191;
China;
National Center of Occupational Safety and Health;
Beijing 102308;
China;
Henan Provincial Institute for Occupational Health;
Zhengzhou 450052;
Henan;
China;
Wugang Institute for Occupational Health;
Wugang 462500;
Henan;
China;
hearing; genotype; susceptibility; exposure; haplotype; populations; exposed; correction; adjusted; drinking;