1. LHL‐Clinics The Norwegian Heart and Lung Association Røros Norway
2. Department of Public Health and Nursing Faculty of Medicine and Health Sciences Norwegian University of Science and Technology Trondheim Norway
3. Department of Clinical and Molecular Medicine Faculty of Medicine and Health Sciences Norwegian University of Science and Technology Trondheim Norway
4. Department of Nursing and Health Promotion Faculty of Health Sciences OsloMET–Oslo Metropolitan University Oslo Norway
5. European Palliative Care Research Centre Department of Oncology Oslo University Hospital and Institute of Clinical Medicine University of Oslo Oslo Norway
6. Cancer Clinic St. Olavs Hospital Trondheim University Hospital Trondheim Norway
7. General Practice Research Unit Department of Public Health and Nursing Faculty of Medicine and Health Sciences Norwegian University of Science and Technology Trondheim Norway
8. Clinic of Ear‐Nose‐Throat, Eye and Maxillofacial Surgery St. Olavs Hospital Trondheim University Hospital Trondheim Norway