1. NHC Key Laboratory of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research) School of Public Health Fudan University ShanghaiChina
2. Department of Maternal, Child and Adolescent Health School of Public Health and Global Health Institute Fudan University ShanghaiChina
3. Department of Biostatistics School of Public Health and Key Laboratory of Public Health Safety of Ministry of Education Fudan University Shanghai China
4. Department of Clinical Medicine ‐ Department of Clinical Epidemiology Aarhus University Aarhus Denmark
5. Shanghai Key Laboratory of Embryo Original Diseases The International Peace Maternity & Child Health HospitalShanghai Jiao Tong University School of Medicine ShanghaiChina
6. Ministry of Education‐Shanghai Key Laboratory of Children’s Environmental Health Xinhua HospitalShanghai Jiao Tong University School of Medicine Shanghai China