1. School of Life Sciences; Sun Yat-sen University; Guangzhou China
2. Epithelial Cell Biology Research Center; School of Biomedical Sciences; Faculty of Medicine, The Chinese University of Hong Kong; Sha Tin NT Hong Kong
3. Key Laboratory of Reproduction and Genetic of Ningxia Hui Autonomous Region; Key Laboratory of Fertility Preservation and Maintenance of Ningxia Medical University and Ministry of Education of China; Yinchuan China
4. Key Laboratory for Regenerative Medicine (Ji Nan University - The Chinese University of Hong Kong); Ministry of Education of the People's Republic of China; China
5. Sichuan University - The Chinese University of Hong Kong Joint Laboratory for Reproductive Medicine; West China Second University Hospital; Chengdu China