1. Breast Unit Kliniken Essen‐Mitte Germany
2. Bethesda Hospital Breast Center Niederrhein Mönchengladbach Germany
3. Department of Gynecology and Gynecologic Oncology Kliniken Essen‐Mitte Germany
4. Department of Obstetrics and Gynecology University Hospital, LMU Munich Germany
5. Centre for Experimental Cancer Medicine, Barts Cancer Institute Queen Mary University of London UK
6. International Breast Cancer Centre (IBCC) Quiron Group Barcelona Spain
7. Vall d'Hebron Institute of Oncology (VHIO) Barcelona Spain
8. Department of Gynecology with Breast Center Charité‐Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt‐Universität zu Berlin Germany
9. Institute for Pathology Viersen Germany