University of Basel - University Hospital Basel, University of Basel - Department of Biomedicine, SAKK Coordinating Center, University of Basel - University Hospital Basel, Department of Oncology, HFR Fribourg – Hôpital fribourgeois, Department of Oncology, HFR Fribourg – Hôpital fribourgeois, Cantonal Hospital of St. Gallen, Cantonal Hospital of St. Gallen, University of Basel - University Hospital Basel, Cantonal Hospital Winterthur, Cantonal Hospital Winterthur, University Hospital Zurich, University Hospital Zurich, Department of Oncology, University Hospital Lausanne CHUV, Divison of Oncology/Haematology, Cantonal Hospital Graubünden, Divison of Oncology/Haematology, Cantonal Hospital Graubünden, University of Bern - Department of Medical Oncology, Department of Oncology/Haematology, Cantonal Hospital Aarau, Cantonal Hospital Baden, University of Geneva - Department of Oncology, Oncology Institute of Southern Switzerland, Division of Medical Oncology, St. Claraspital, Centre de Chimiothérapie Anti-Cancéreuse, SAKK Coordinating Center, SAKK Coordinating Center, Department of Thoracic Surgery, University Hospital Lausanne CHUV, Cantonal Hospital Winterthur and Independent

affiliation not provided to SSRN, affiliation not provided to SSRN, Swiss Group for Clinical Cancer Research (SAKK) Coordinating Center, Kantonsspital St Gallen, affiliation not provided to SSRN, University of Basel - University Hospital Basel, Cantonal Hospital Winterthur, University of Basel - University Hospital Basel, affiliation not provided to SSRN, Oncology Institute of Southern Switzerland, Oncology Institute of Southern Switzerland, affiliation not provided to SSRN, Kantonsspital Graubünden, Department of Oncology/Haematology, Cantonal Hospital Aarau, Lausanne University Hospital, affiliation not provided to SSRN, Varian Medical Systems, affiliation not provided to SSRN, Universitäres Lehrund Forschungsspital and affiliation not provided to SSRN