1. State Key Laboratory of Stem cell and Reproductive Biology , Institute of Zoology, Chinese Academy of Sciences, Beijing, China
2. Institute for Stem Cell and Regeneration , Chinese Academy of Sciences, Beijing, China
3. Beijing Institute for Stem Cell and Regenerative Medicine , Beijing, China
4. University of the Chinese Academy of Sciences , Beijing, China
5. Department of Obstetrics and Gynecology , Fujian Provincial Key Laboratory of Reproductive Health Research, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, Fujian, China
6. Medical College , Shaoxing University, Shaoxing, Zhejiang, China