1. Department of Gynecology and Obstetrics, Erlangen University Hospital, Friedrich Alexander University of Erlangen–Nuremberg, Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany
2. Department of Obstetrics and Gynecology, University of Duesseldorf, Duesseldorf, Germany
3. Biostatistics Unit, Department of Gynecology and Obstetrics, Erlangen University Hospital, Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany
4. Certified Centre for Endometriosis at the MIC Klinik, Berlin, Germany
5. HELIOS University Hospital Wuppertal, Wuppertal, Germany
6. MIC Centre, Women Health Clinic Dr. Geisenhofer, Munich, Germany
7. Rems-Murr-Klinik, Schorndorf, Germany