1. Department of Gynecology Oslo University Hospital Oslo Norway
2. Department of Gynecology Certified Center for Endometriosis and Pelvic Pain, Hospital St John of God Vienna Austria
3. Institute of Clinical Medicine, Faculty of Medicine University of Oslo Oslo Norway
4. Division of Obstetrics and Gynecology Oslo University Hospital Oslo Norway
5. Department of Surgery Hospital St John of God Vienna Austria
6. Oslo Centre for Biostatistics and Epidemiology Oslo University Hospital Oslo Norway
7. Acute Gynecology, Early Pregnancy and Advanced Endosurgery Unit Sydney Medical School, Nepean Hospital Sydney Australia
8. Department of Obstetrics and Gynecology McMaster University Hamilton Canada
9. Scientific Endometriosis Foundation (SEF, Stiftung Endometriose Forschung) Westerstede Germany