1. Center of Reproductive Medicine, Affiliated hospital of Youjiang Medical University for Nationalities, Baise, China.
2. Graduate School of Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, China.
3. Center for Genetics, National Research Institute of Family Planning, Beijing, China.
4. Medicine Center, 901st hospital of PLA Joint Logistic Support Force, Hefei, China.
5. Industrial College of biomedicine and health industry, Youjiang Medical University for Nationalities, Baise, China.
6. Department of Radiology, Affiliated hospital of Youjiang Medical University for Nationalities, Baise, China.
7. NHC Key Laboratory of Reproductive Health Engineering Technology Research (NRIFP), Beijing, China.