1 Department of Radiation Oncology, Geneva University Hospital, Switzerland.
2 Department of Radiation Oncology, Inselspital, Bern University Hospital, University of Bern, Switzerland.
3 Department of Radiation Oncology, Cantonal Hospital of Fribourg - HFR, Switzerland.
4 Department of Radiation Oncology, University Hospital Zürich and University of Zürich, Switzerland.
5 Department of Radiation Oncology, Kantonsspital Graubünden, Chur, Switzerland.
6 Radiation Oncology Center, Bienne-Seeland-Jura Bernois, Switzerland.
7 Department of Radiation Oncology, Hirslanden Clinique Bois-Cerf, Lausanne, Switzerland.
8 Department of Radiation Oncology, Hôpital de La Tour, Geneva, Switzerland.
9 Department of Radiation Oncology, KSA-KSB, Kantonspital Aarau, Switzerland.
10 Department of Radiation Oncology, Réseau Hospitalier Neuchâtelois, La Chaux-de-Fonds, Switzerland.
11 Department of Radiation Oncology, Cantonal Hospital of Winthertur, Switzerland.
12 Department of Radiation Oncology, Clinica Luganese Moncucco, Lugano, Switzerland.
13 Department of Radiation Oncology, Hôpital Riviera-Chablais, Rennaz, Switzerland.
14 Department of Radiation Oncology, Hôpital du Valais, Sion, Switzerland.
15 Department of Radiation Oncology, Clinique de Genôlier - Centre Médical des Eaux Vives, Geneva, Switzerland.
16 Department of Radiation Oncology, Hirslanden Clinique Grangettes, Geneva, Switzerland.
17 Department of Radiation Oncology, Oncology Institute of Southern Switzerland, Bellinzona, Switzerland.
18 Department of Radiation Oncology, Cantonal Hospital of St. Gallen, St. Gallen and Department of Radiation Oncology, University of Bern, Switzerland.
19 Department of Radiation Oncology, Spital Thurgau AG, Kantonsspitäler Frauenfeld und Münsterlingen, Switzerland.
20 Radiotherapy Institute, Hirslanden Klinik, Zürich, Switzerland.
21 Department of Radiation Oncology, City Hospital Triemli, Zürich and Department of Radiation Oncology, University of Bern, Switzerland.
22 Department of Radiation Oncology, University Hospital Basel, Switzerland.
23 Department of Radiation Oncology, Geneva University Hospital, Switzerland; Faculty of Medicine, Geneva University, Switzerland.
24 Department of Radiation Oncology, Geneva University Hospital, Switzerland; Faculty of Medicine, Geneva University, Switzerland. Electronic address: Thomas.Zilli@hcuge.ch.