1. Department of Psychology, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
2. Department of Sociology and Political Science, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
3. Unit of Applied Clinical Research, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
4. Department of Oto-Rhino-Laryngology, Malmø University Hospital, Malmø, Sweden
5. Unit of Applied Clinical Research, Norwegian University of Science and Technology (NTNU) and Palliative Medicine Unit, Department of Oncology and Radiotherapy, University Hospital of Trondheim, Trondheim, Norway