1. Chongqing Center for Disease Control and Prevention, China
2. National Institute of Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, China
3. Guangzhou Twelfth People’s Hospital Affiliated to Guangzhou Medical University, China
4. Fujian Province Occupational Disease and Chemical Poisoning Prevention and Control Center, China
5. Zhejiang Provincial Center for Disease Control and Prevention, China
6. Institute of Occupational Medicine of Jiangxi, China
7. Fuzhou Municipal Occupational Disease and Chemical Poisoning Prevention and Control Center, China