1. Department of Obstetrics and Gynecology, IVF Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107 Yan Jiang West Road, Guangzhou, Guangdong 510120, China
2. State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, 135 Xingang Xi Road, Guangzhou, Guangdong 510275, China
3. Department of Molecular and Human Genetics, Baylor College of Medicine, one Baylor Plaza, Houston, TX77030, US
4. AmCare Genomics Laboratory, International BioIsland, Luoxuan 4th Road, 2-4C-201, Guangzhou, Guangdong 510300, China