1. Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, Department of Epidemiology and Health Statistics, School of Public Health, Southeast University, Nanjing, Jiangsu 210009, China
2. National Health Commission Contraceptives Adverse Reaction Surveillance Center, Nanjing 210036, China
3. Jiangsu Provincial Medical Key Laboratory of Fertility Protection and Health Technology Assessment, Nanjing 210036, China
4. Jiangsu Health Development Research Center, Nanjing 210036, China