1. IVF Center Department of Obstetrics and Gynecology Sun Yat‐sen Memorial Hospital Sun Yat‐sen University Guangzhou China
2. BNLMS State Key Laboratory for Structural Chemistry of Unstable and Stable Species Peking‐Tsinghua Center for Life Sciences at College of Chemistry and Molecular Engineering, and Center for Quantitative Biology Peking University Beijing China
3. Reproductive Medicine Center Sixth Affiliated Hospital Sun Yat‐sen University Guangzhou China
4. Ultrasonography Department Sun Yat‐sen Memorial Hospital Sun Yat‐sen University Guangzhou China
5. State Key Laboratory of Biocontrol School of Life Sciences Sun Yat‐sen University Guangzhou China