1. Department of Obstetrics & Gynecology; Máxima Medical Center; Veldhoven Netherlands
2. King's Fertility; The Fetal Medicine Research Institute; London UK
3. Center for Reproductive Medicine; Amsterdam UMC, University of Amsterdam; Amsterdam Netherlands
4. Academic Endometriosis Center, Department of Reproductive Medicine; Amsterdam UMC; Amsterdam Netherlands
5. Department of Obstetrics & Gynaecology; Maastricht University Medical Center (MUMC+); Maastricht Netherlands