1. University of Amsterdam; Amsterdam Netherlands 1105 AZ
2. VU University Medical Center; Amsterdam Netherlands
3. School of Women's & Children's Health, Royal Hospital for Women and IVF Australia; Division of Obstetrics & Gynaecology; Barker Street Randwick Sydney Australia NSW 2031
4. Academic Medical Center, University of Amsterdam; Center for Reproductive Medicine; Meibergdreef 9 Amsterdam Netherlands 1105 AZ
5. Universidade Federal de São Paulo; Department of Gynecology; Rua Joaquim de Almeida, 86 - AP. 71 São Paulo São Paulo Brazil 04042-034
6. The University of Adelaide; Discipline of Obstetrics and Gynaecology, School of Medicine, Robinson Research Institute; Level 3, Medical School South Building Frome Road Adelaide South Australia Australia SA 5005