1. Department of Obstetrics and Gynaecology, Monash University, Clayton, Australia
2. Monash Health, Clayton, Australia
3. Monash IVF, Richmond, Australia
4. Department of Obstetrics and Gynaecology, Assiut University, Women's Health Hospital, Assiut, Egypt
5. Department of Obstetrics and Gynaecology, University of Hong Kong, Hong Kong, Hong Kong
6. Aberdeen Centre for Women's Health Research, University of Aberdeen, Aberdeen, United Kingdom