Department of Occupational Health and Occupational Disease, College of Public Health, Zhengzhou University, Zhengzhou, Henan 450001, China
Yuanmeng Qi
Department of Occupational Health and Occupational Disease, College of Public Health, Zhengzhou University, Zhengzhou, Henan 450001, China
Meixiu Duan
Department of Occupational Health and Occupational Disease, College of Public Health, Zhengzhou University, Zhengzhou, Henan 450001, China
Changfu Hao
Corresponding author. No. 100 Science Avenue, Zhengzhou City, Henan 450001, China.; Department of Occupational Health and Occupational Disease, College of Public Health, Zhengzhou University, Zhengzhou, Henan 450001, China
Wu Yao
Corresponding author. No. 100 Science Avenue, Zhengzhou City, Henan 450001, China.; Department of Occupational Health and Occupational Disease, College of Public Health, Zhengzhou University, Zhengzhou, Henan 450001, China