Affiliation: | ∗ Department of Radiation Oncology, Ege University Medical School, Izmir, Turkey † Department of Radiation Oncology, Mayo Clinic, Rochester, MN, USA ‡ Department of Hematology, Theagenion Cancer Center, Thessaloniki, Greece § Division of Hematology, Armando Businco Cancer Center, Cagliari, Italy ¶ Department of Oncology, Rambam Medical Center, Haifa, Israel ‖ Department of Radiation Oncology, Cancer Hospital of Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China ∗∗ Servicio de Oncología Radioterápica, Institut Catala d’Oncologia, Barcelona, Spain †† Department of Oncology and Radiotherapy, Medical University of Gdansk, Poland ‡‡ Department of Radiation Oncology, Geneva University Hospital, Switzerland §§ Department of Radiation Oncology, University of Massachusetts Medical School/Center, North Worcester, MA, USA ¶¶ Department of Radiation Oncology, Istanbul University Cerrahpa?a Medical School, Istanbul, Turkey ‖‖ Institute Verbeeten, Tilburg, the Netherlands ∗∗∗ Department of Radiation Oncology, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland |