(1)Cantonal Hospital St. Gallen, Radiation Oncology, St. Gallen, Switzerland;(2)Swiss Group for Clinical Cancer Research Coordinating Centre and University of Basel, Institute of Pharmaceutical Medicine, Bern and Basel, Switzerland;(3)Cantonal Hospital Lucerne, Medical Oncology, Lucerne, Switzerland;(4)National Institute for Cancer Epidemiology and Registration NICER, Statistics, Zurich, Switzerland;(5)University Hospital Zurich, Gynecology, Zurich, Switzerland;(6)University Hospital Bern, Radiation Oncology, Bern, Switzerland;(7)Cantonal Hospital St. Gallen and University Bern, Radiation Oncology, St. Gallen and Bern, Switzerland;(8)Cantonal Hospital Lucerne and University Bern, Medical Oncology, Lucerne and Bern, Switzerland;(9)University of Basel, Institute of Pharmaceutical Medicine, Basel, Switzerland;

(1)University Medical Centre Utrecht, Department of Radiation Oncology, Utrecht, The Netherlands;(2)Universitair Medisch Centrum Utrecht, Radiation oncology, Utrecht, The Netherlands;(3)University of Texas MD Anderson Cancer Center Houston, Department of Radiation Oncology, Houston, USA;(4)The Christie National Health Service Foundation Trust, Department of Radiation Oncology, Manchester, United Kingdom;(5)Sunnybrook Health Sciences Centre, Radiation Oncology, Toronto, Canada;(6)Netherlands Cancer Institute- Antoni van Leeuwenhoek Hospital, Department of Radiation Oncology, Amsterdam, The Netherlands;(7)Elekta, Research Software Engineer, Stockholm, Sweden;(8)The Royal Marsden NHS Foundation Trust and The Institute of Cancer Research, Department of Radiotherapy and Imaging Oncology, London, United Kingdom;(9)Medical College of Wisconsin, Department of Radiation-Oncology, Wisconsin, USA;(10)Medical College of Wisconsin, Department of Radiation-Oncology, Milwaukee, USA;(11)The Institute of Cancer Research, Clinical Trials and Statistics Unit, London, United Kingdom;(12)University Medical Centre Utrecht, Radiation oncology, Utrecht, The Netherlands;