1. Department of Obstetrics and Gynecology West China Second University HospitalSichuan University Chengdu China
2. West China School of Medicine Sichuan University Chengdu China
3. Department of Thoracic Surgery West China HospitalSichuan University Chengdu China
4. Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan UniversityMinistry of Education Chengdu China
5. The Joint Laboratory for Reproductive Medicine of Sichuan UniversityThe Chinese University of Hong Kong Hong Kong China
6. Department of Evidence‐Based Medicine and Clinical Epidemiology West China HospitalSichuan University Chengdu China
7. Department of Pharmacy Services Tacoma St. Joseph Medical CenterCHI Franciscan Health System Tacoma WA USA