1. Obstetrics and Gynaecology Hospital of Fudan University Shanghai China
2. Shanghai Key Laboratory of Female Reproductive Endocrine‐Related Diseases Shanghai China
3. Women’s Health and Perinatology Research Group Department of Clinical Medicine UiT‐The Arctic University of Norway Tromsø Norway
4. National Research Institute for Family Planning Beijing China
5. National Human Genetic Resources Center Beijing China
6. Graduate School of Peking Union Medical College Beijing China
7. School of Public Health Institute for Epidemiology and Statistics Lanzhou University Lanzhou China
8. Department of Maternal and Child Health National Health and Family Planning Commission of the People’s Republic of China Beijing China
9. Institute of Biomedical Sciences Fudan University Shanghai China