1. Department of Radiation Oncology, Kantonsspital St. Gallen, 9007 St. Gallen, Switzerland
2. Department of Radiation Oncology, Kantonsspital Winterthur, Brauerstrasse 15, Haus R, 8400 Winterthur, Switzerland
3. Department of Radiation Oncology, Inselspital, Bern University Hospital, University of Bern, 3012 Bern, Switzerland
4. University Center for Palliative Care, Inselspital, Bern University Hospital, University of Bern, 3012 Bern, Switzerland
5. Competence Center for Palliative Care, Department of Radiation Oncology, University Hospital Zurich, 8091 Zurich, Switzerland