1. State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
2. School of Life Sciences, University of Science and Technology of China, Hefei, Anhui, China
3. University of Chinese Academy of Sciences, Beijing, China
4. Beijing Cord Blood Bank, Beijing, China
5. Department of Bio-therapeutic, Department of Molecular & Immunology, Chinese PLA General Hospital, Beijing, China
6. Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, China