1. Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, Hefei
2. Key Laboratory of Population Health Across Life Cycle (Anhui Medical University),Ministry of Education of the People’s Republic of China, No 81 Meishan Road, Hefei, 230032,Anhui
3. NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract,No 81 Meishan Road, Hefei 230032, Anhui
4. Anhui Provincial Key Laboratory of Population Health and Aristogenics, Anhui Medical University; No 81 Meishan Road, Hefei 230032, Anhui
5. Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032