1. Department of Oncology and Radiotherapy, Turku University Hospital, Turku, Finland;
2. Department of Clinical Oncology, University of Turku, Turku, Finland;
3. Nordic Healthcare Group, Helsinki, Finland;
4. Department of Palliative Care, Comprehensive Cancer Center, Helsinki University Hospital, Helsinki, Finland;
5. Tuusula Health Care Centre, Tuusula, Finland;
6. Center of Oncology, Kuopio University Hospital, Kuopio, Finland;
7. Department of Clinical Oncology, Oulu University Hospital, Oulu, Finland;
8. Department of Oncology, Palliative Care Unit, Tampere University Hospital and Faculty of Medicine and Health Technology, University of Tampere, Tampere, Finland;
9. Department of Palliative Care, Comprehensive Cancer Center, University of Helsinki, Helsinki, Finland