1. Savaid Medical School University of Chinese Academy of Sciences Beijing China
2. State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology Chinese Academy of Sciences Beijing China
3. Institute for Stem Cell and Regenerative Medicine Chinese Academy of Sciences Beijing China
4. University of Chinese Academy of Sciences Beijing China
5. Beijing Farm Animal Research Center, Institute of Zoology Chinese Academy of Sciences Beijing China
6. Institute of Animal Sciences Chinese Academy of Agricultural Sciences Beijing China
7. State Key Laboratory of Agrobiotechnology, College of Biological Sciences China Agricultural University Beijing China
8. Beijing Institute for Stem Cell and Regenerative Medicine Beijing China