1. Faculty of Biochemistry and Molecular Biology Shanxi Medical University Taiyuan Shanxi China
2. Shanxi Province Reproductive Science Institute Taiyuan Shanxi China
3. State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology Chinese Academy of Sciences Beijing China
4. Department of Veterinary Pathobiology University of Missouri Columbia Missouri USA
5. Fertility Preservation Lab, Reproductive Medicine Center Guangdong Second Provincial General Hospital Guangzhou China