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