1. Department of Gynecology and Obstetrics, Marienhospital Bottrop, Bottrop, Germany
2. National Center for Tumor Diseases, Division Gynecologic Oncology, University Hospital and German Cancer Research Center Heidelberg, Heidelberg, Germany
3. Department of Gynecology and Obstetrics, University Hospital Düsseldorf, Düsseldorf, Germany
4. Department of Gynecology and Obstetrics, University Hospital Würzburg, Würzburg, Germany
5. Department of Gynecology and Obstetrics, Ulm University Hospital, Ulm, Germany
6. Erlangen University Hospital, Department of Gynecology and Obstetrics, Comprehensive Cancer Center Erlangen-EMN, Friedrich-Alexander University Erlangen-Nuremberg, Erlangen, Germany
7. ClinSol GmbH & Co KG, Würzburg, Germany
8. Kooperatives Brustzentrum Paderborn, Klinik für Gynäkologie und Geburtshilfe, Frauenklinik St. Louise, Paderborn, St. Josefs-Krankenhaus, Salzkotten, Germany
9. Department of Obstetrics and Gynecology, University of Tübingen, Tübingen, Germany
10. Department of Obstetrics and Gynecology, University of Heidelberg, Heidelberg, Germany
11. OncoConsult Hamburg GmbH, Hamburg, Germany
12. Oncology Practice at Bethanien Hospital Frankfurt, Frankfurt, Germany
13. Department of Obstetrics and Gynecology, Technical University of Munich, School of Medicine, Klinikum rechts der Isar, Munich, Germany
14. Charité University Hospital, Campus Benjamin Franklin, Department of Hematology, Oncology and Tumour Immunology, Berlin, Germany
15. Department of Gynecology, Hamburg-Eppendorf University Medical Center, Hamburg, Germany