1. From the Department of Radiation Oncology, University Hospital Ulm, Ulm; Departments of Urology and Radiation Oncology, Charité Universitätsmedizin, Campus Benjamin-Franklin, Berlin; Department of Pathology, Helios-Clinic Wuppertal, Wuppertal; Departments of Radiation Oncology and Urology, University Hospital Münster, Münster; Department of Radiation Oncology, General Hospital Hagen, Hagen; Departments of Urology and Radiation Oncology, University Hospital Homburg/Saar, Homburg/Saar; Department of...