1. Department of Obstetrics and Gynecology Nanfang Hospital Southern Medical University Guangzhou Guangdong 510515 China
2. Guangzhou Key Laboratory of Forensic Multi‐Omics for Precision Identification School of Forensic Medicine Southern Medical University Guangzhou Guangdong 510515 China
3. School of Nursing Southern Medical University Guangzhou Guangdong 510515 China
4. Department of Epidemiology School of Public Health Southern Medical University Guangzhou Guangdong 510515 China
5. Department of Obstetrics and Gynecology Guangzhou First People's Hospital School of Medicine South China University of Technology Guangzhou Guangdong 510180 China
6. Department of Obstetrics and Gynaecology; Li Ka Shing Institute of Health Sciences; School of Biomedical Sciences; Chinese University of Hong Kong‐Sichuan University Joint Laboratory in Reproductive Medicine; The Chinese University of Hong Kong Hong Kong SAR NT China