1. Centre for Diseases Prevention and Control of Eastern Theater, Nanjing 210002, China
2. Department of Obstetrics and Gynecology, the First Affiliated Hospital of Jinan University, Guangzhou 510630, China
3. Department of Gynecology, Women’s Hospital of Nanjing Medical University (Nanjing Maternity and Child Health Care Hospital), Nanjing 210001, China
4. Department of Clinical Pharmacy, General Hospital of Eastern Theater Command, Nanjing 210002, China
5. Department of Third Outpatient, Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing 210029, China
6. Department of Obstetrics and Gynecology, Foshan Fosun Chancheng Hospital, Foshan 528000, China