1. Reproductive Medicine Center, Department of Obstetrics and Gynecology; Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology; Wuhan China
2. Department of Gynecology and Obstetrics; Hôpital Femme Mère Enfant; Bron France
3. Medical School; Aristotle University of Thessaloniki; Thessaloniki Greece
4. Division of Women's Health; School of Clinical Medicine, UNSW and Royal Hospital for Women and Monash IVF; Sydney Australia
5. Centre for Big Data Research in Health & School of Women's & Children's Health; UNSW Medicine; Sydney Australia
6. Center for Reproductive Medicine; Amsterdam UMC, University of Amsterdam; Amsterdam Netherlands