1. Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, No. 49 North Hua Yuan Road, Hai Dian District, Beijing 100191, China
2. Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproduction, Beijing 100191, China
3. Key Laboratory of Assisted Reproduction, Ministry of Education, Beijing 100191, China
4. Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
5. School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China