1. Department of Clinical Medicine, University of Bergen, Bergen, Norway
2. Sunniva Centre for Palliative Care, Department of Internal Medicine, Haraldsplass Deaconess Hospital Bergen, Bergen, Norway
3. Department of Anesthesiology, Intensive Care, Palliative Medicine and Pain Therapy, HELIOS Klinikum Schleswig, Schleswig, Germany
4. Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
5. Molde University College, Molde, Norway