Zhejiang University - Department of Pediatrics and Adolescent Gynecology, Zhejiang University - Department of Pediatrics and Adolescent Gynecology, Zhejiang University - Department of Pediatrics and Adolescent Gynecology, Zhejiang University - School of Public Health, Zhejiang University - Department of Public Health, Zhejiang University - Department of Pediatrics and Adolescent Gynecology, Zhejiang University - Department of Pediatrics and Adolescent Gynecology, Zhejiang University - Department of Information System, Zhejiang University - Department of Pediatrics and Adolescent Gynecology, Peking University - Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Dongnan University, - School of Public Health, Royal Children's Hospital, Melbourne - Department of Paediatric and Adolescent Gynaecology, The Chinese University of Hong Kong (CUHK) - Department of Obstetrics & Gynaecology, Harvard University - Department of Population Medicine and Zhejiang University - School of Public Health