8 , German Professional Association of Gynaeco-Oncology in Practices (BNGO) 1 BNGO e. V.; Neuenhagen b. Berlin; 2 Practice for Gynaeco-Oncology, Berlin; 3 Practice Clinic for Oncology, Berlin; 4 Practice for Gynaecology, Obstetrics and Gynaeco-Oncology, Chemnitz; 5 Practice for Gynaecology, Obstetrics and Gynaeco-Oncology, Plauen; 6 Practice for Gynaecology, Mühlhausen; 7 Practice for Gynaecology and Obstetrics, Oranienburg; 8 SPGO, Mannheim Background