1 Breast Cancer Radiation Therapy Unit, Sheba Medical Center, Ramat Gan, Israel; Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel1; Department of Radiation Oncology (Maastro), GROW School for Oncology and Developmental Biology, Maastricht University Medical Centre+, Maastricht, The Netherlands.
2 Breast Surgery, San Raffaele University and Research Hospital, Milan, Italy.
3 Department of Radiation Oncology, Iridium Netwerk, Antwerp 2610, Belgium; University of Antwerp, Faculty of Medicine and Health Sciences, Antwerp, Belgium. Electronic address: Philip.poortmans@telenet.be.