a Breast Cancer Service for Young Women, Fellow of the Dr Pinchas Borenstein Talpiot Medical Leadership Program, Oncology Institute, Tel Hashomer, Israel; b GBG Forschungs GmbH, Neu-Isenburg, Germany; c Fertility & Procreation Unit, Division of Gynecologic Oncology, European Institute of Oncology, Milan, Italy; d Klinika Onkologii i Radioterapii, Uniwersyteckie Centrum Kliniczne, Gda ’ nsk, Poland