1 Christian Ekanger, MD, Department of Oncology and Medical Physics, Haukeland University Hospital, Bergen, Norway; Rune Kvåle, MD, PhD, Department of Oncology and Medical Physics, Haukeland University Hospital, Bergen, Norway, Department of Research, Cancer Registry of Norway, Oslo, Norway; Lars Reisæter, MD, PhD, Department of Radiology, Haukeland University Hospital, Bergen, Norway; Karsten Gravdal, MD, PhD, Department of Pathology, Haukeland University Hospital, Bergen, Norway; Department of Urology, Haukeland University Hospital, Bergen, Norway; Alfred Honoré, MD, Department of Oncology and Medical Physics, Haukeland University Hospital, Bergen, Norway; and Olav Dahl, MD, PhD, Department of Clinical Science, Medical Faculty, University of Bergen, Bergen, Norway.