1. Gynecology Department of West China Second University Hospital, Sichuan University, Chengdu, 610041, China
2. Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, 610041, China
3. Key Laboratory of Optical Technologies for Microfabrication, Institute of Optics and Electronics, Chinese Academy of Science, Chengdu, 610029, China