1. National Research Institute for Family Planning, National Human Genetic Resource Center, Beijing, China
2. Graduate School of Peking Union Medical College, Dongdan Santiao, Beijing, China
3. Department of Endocrinology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
4. Department of Endocrinology and Metabolism, The First Hospital of China Medical University, Shenyang, China
5. Department of Maternal and Child Health, National Health Commission of the People’s Republic of China, Beijing, China