1. Department of Clinical Radiation Sciences, Institute of Clinical Sciences, Sahlgrenska Academy, Gothenburg University, Gothenburg, Sweden.
2. Regional Cancer Centre West, Gothenburg, Sweden.
3. Department of Oncology, Institute of Clinical Sciences, Sahlgrenska Academy, Gothenburg University, Gothenburg, Sweden.
4. Department of Geography, University of Bergen, Bergen, Norway.
5. LEFO – Institute for Studies of the Medical Profession, Oslo, Norway.
6. Institute of Stress Medicine, Gothenburg, Sweden.
7. Sahlgrenska University Hospital, Gothenburg, Sweden.