1. Department of Gynecology and Oncology; Jagiellonian University; Krakow Poland
2. Ludwin & Ludwin Gynecology; Private Medical Center; Krakow Poland
3. SEMEAR Fertilidade; Reproductive Medicine; Ribeirão Preto Brazil
4. Department of Obstetrics and Gynecology, Faculty of Medicine of Ribeirão Preto; University of São Paulo (DGO-FRMP-USP); Ribeirão Preto Brazil
5. San Juan University Hospital/Miguel Hernández University; Alicante Spain
6. Department of Obstetrics and Gynecology; University of Navarra; Pamplona Spain
7. Harvard Medical School; Boston MA USA
8. Obstetrics and Gynaecology, Acute Gynaecology, Early Pregnancy and Advanced Endosurgery Unit, Nepean Hospital, Sydney Medical School Nepean; University of Sydney; Sydney NSW Australia
9. Carl-von-Ossietzky-University Oldenburg; Oldenburg Germany
10. University Medical Center Utrecht; Utrecht The Netherlands
11. University Hospital Ghent; Ghent Belgium
12. Baylor College of Medicine; Houston TX USA
13. Department of Obstetrics and Gynecology; University of Cagliari; Cagliari Italy
14. Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology; Duke University Medical Center; Durham NC USA
15. Department of Radiology; Beth Israel Deaconess Medical Center; Boston MA USA
16. Department of Obstetrics & Gynecology; Wright State University, Boonshoft School of Medicine; Dayton OH USA
17. Instituto Valenciano de Infertilidad; Valencia Spain
18. University of Florence; Florence Italy
19. University College London Hospital; London UK