1. Department of Obstetrics and Gynecology, Oslo University Hospital, Oslo, Norway
2. Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
3. Department of Gynecology, Certified Center for Endometriosis and Pelvic Pain, Hospital St. John of God, Vienna, Austria
4. Department of Obstetrics and Gynecology, Medical University of Vienna, Vienna, Austria
5. Stiftung Endometrioseforschung/Endometriosis Research Group Central Europe