1 Obstetrics and Gynecology Hospital, NHC Key Laboratory of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Children's Hospital, Fudan University, Shanghai 200011, PR China.
2 Department of Assisted Reproduction, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200092, PR China.
3 The MOE Key Laboratory of Contemporary Anthropology, Department of Anthropology and Human Genetics, School of Life Sciences, Fudan University, Shanghai 200438, PR China.
4 Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Institute of Metabolism and Integrative Biology, Institute of Reproduction and Development, Institutes of Biomedical Sciences, Fudan University, Shanghai 200090, PR China.