1. Department of Obstetrics; Obstetrics and Gynecology Hospital; Fudan University; Shanghai China
2. Institute of Biostatistics; Fudan University; Shanghai China
3. Women's Health and Perinatology Research Group; Department of Clinical Medicine; Faculty of Health Sciences; UiT - The Arctic University of Norway; Tromsø Norway
4. Department of Obstetrics and Gynecology; University Hospital of Northern Norway; Tromsø Norway
5. Department of Clinical Science, Intervention and Technology; Karolinska Institute; Stockholm Sweden
6. Shanghai Key Laboratory of Birth Defects; Shanghai China
7. Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases; Shanghai China