1. Medical University of Vienna, Comprehensive Cancer Center, Vienna
2. ABCSG (Austrian Breast & Colorectal Cancer Study Group), Vienna
3. Department of Gynecology and Gynecological Oncology, Comprehensive Cancer Center, Medical University of Vienna, Vienna
4. Department of Internal Medicine I, Medical University of Vienna, Vienna
5. Department of Obstetrics and Gynecology, Medical University of Innsbruck, Innsbruck, Austria
6. Department of Internal Medicine III, Paracelsus Medical University Salzburg, Salzburg Cancer Research Institute, Center for Clinical Cancer and Immunology Trials; Cancer Cluster Salzburg, Salzburg, Austria
7. Department of General Surgery and Breast Health Center of the Comprehensive Cancer Center, Medical University of Vienna, Vienna
8. Breast Center Carinthia, St. Veit, Austria
9. Division of Oncology, Department of Internal Medicine, and Comprehensive Cancer Center, Medical University of Graz, Graz, Austria
10. Department of Internal Medicine, Salzkammergut Klinikum Hospital Vöcklabruck, Vöcklabruck, Austria
11. Department of Surgery, Hospital Wolfsberg, Wolfsberg, Austria
12. Department of Gynecology and Obstetrics, Medical University of Graz, Graz, Austria
13. Breast Unit, Helios University Hospital Wuppertal, Wuppertal Germany, University Witten/Herdecke, Germany
14. Department of Gynecology, Hanusch Hospital Vienna, Vienna
15. Division of Neuro- and Musculoskeletal Radiology, Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, Vienna
16. Department of Gynecology, Karl Landsteiner Institute for Gynecologic Oncology and Senology, Hospital Hietzing, Vienna
17. Department of Oncology-Pathology, Cancer Research Karolinska Institutet, Stockholm
18. Breast Health Center, St. Francis Hospital Vienna, Vienna