Christoph Thomssen1, Nadia Harbeck2, Michael Gnant3. 1. Department of Gynecology, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany. 2. Breast Center, Department of Gynecology and Obstetrics and CCCLMU, LMU University Hospital, Munich, Germany. 3. Comprehensive Cancer Centre, Medical University Vienna, Vienna, Austria.