1. Department of Occupational Health & Toxicology, School of Public Health, Fudan University, Shanghai, China
2. Occupational Health, Shanghai Institute of Occupational Disease for Chemical Industry (Shanghai Institute of Occupational Safety & Health), Shanghai, China
3. Pharmacy, Science and Technology, University of Medicine, Targu Mures, Romania
4. Occupational Health, University of Texas Medical Branch, Galveston, TX, USA