[1] Chinese Ctr Dis Control & Prevent, Natl Inst Occupat Hlth & Poison Control, Beijing, Peoples R China
[2] Chongqing Ctr Dis Control & Prevent, Chongqing, Peoples R China
[3] Hubei Prov Hosp Integrated Chinese & Western Med, Wuhan, Hubei, Peoples R China
[4] Guangzhou Med Univ, Guangzhou Twelfth Peoples Hosp, Guangzhou, Guangdong, Peoples R China
[5] Liaoning Prov Hlth Serv Ctr, Shenyang, Liaoning, Peoples R China
[6] GuizhouProv Occupat Dis Prevent & Control Hosp, Guiyang, Guizhou, Peoples R China
[7] Shanghai Ctr Dis Control & Prevent, Shanghai, Peoples R China
[8] Shandong Acad Occupat Hlth & Occupat Med, Jinan, Shandong, Peoples R China
[9] Jiangsu Prov Ctr Dis Control & Prevent, Nanjing, Jiangsu, Peoples R China
[10] Civil Aviat Adm China, Civil Aviat Med Ctr, Beijing, Peoples R China
[11] Zhejiang Prov Ctr Dis Control & Prevent, Hangzhou, Zhejiang, Peoples R China
[12] Tianjin Occupat Dis Prevent & Control Hosp, Tianjin, Peoples R China
[13] Tianjin Ctr Dis Control & Prevent, Tianjin, Peoples R China
[14] Beijing Ctr Dis Control & Prevent, Beijing, Peoples R China
[15] Fujian Prov Occupat Dis & Chem Poisoning Prevent, Fuzhou, Peoples R China
[16] Guangdong Prov Hosp Occupat Dis Prevent & Treatme, Guangzhou, Guangdong, Peoples R China
[17] Hubei Prov Ctr Dis Control & Prevent, Wuhan, Hubei, Peoples R China
[18] Inst Occupat Med Jiangxi, Nanchang, Jiangxi, Peoples R China
[19] Ningxia Hui Autonomous Reg Ctr Dis Control & Prev, Yinchuan, Ningxia, Peoples R China
[20] Sichuan Prov Ctr Dis Control & Prevent, Chengdu, Sichuan, Peoples R China
[21] Shanxi Prov Ctr Dis Control & Prevent, Xian, Shanxi, Peoples R China