1. Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
2. Guangdong Provincial Engineering Technology Research Center of Environmental and Health Risk Assessment, Sun Yat-sen University, Guangzhou, China
3. Department of Global and Community Health, George Mason University, Fairfax, Virginia, USA
4. Department of Anatomy and Embryology. Leiden University Medical Center, Leiden, The Netherlands
5. Department of Reproductive Medicine and Genetics Center, The People’s Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, China
6. Department of Environmental Health Sciences, University at Albany, State University of New York, Rensselaer, 12 Albany, NY, USA
7. Department of Epidemiology and Biostatistics, University at Albany, State University of New York, Rensselaer, 12 Albany, NY, USA