1. Department of Oncology; Division of Cancer Medicine, Oslo University Hospital; Norway
2. Institute of Clinical Medicine; Faculty of Medicine, University of Oslo; Norway
3. Department of Research and Development; Division of Emergencies and Critical Care, Oslo University Hospital; Norway
4. Institute of Health and Society; Faculty of Medicine, University of Oslo; Norway
5. Lovisenberg Diaconal University College; Oslo Norway
6. Oslo Centre for Biostatistics and Epidemiology; Faculty of Medicine, University of Oslo and Oslo University Hospital; Norway
7. Research Support Services; Oslo University Hospital; Norway