1. School of Medicine, Nankai University, Tianjin, China
2. Tianjin Central Hospital of Gynecology Obstetrics, Tianjin, China
3. Tianjin Key Laboratory of Human Development and Reproductive Regulation, Tianjin, China
4. Department of Biopharmaceutical Sciences, College of Pharmacy, Harbin Medical University, Harbin, China
5. Tianjin Medical University, Tianjin, China