1. Department of Health Management and Health Economics, Institute of Health and Society, Faculty of Medicine, University of Oslo, Oslo, Norway
2. Cancer Outcomes, Public Policy and Effectiveness Research (COPPER) Center, Yale Cancer Center, Yale University School of Medicine, New Haven, Connecticut
3. Department of Epidemiology and Biostatistics, Amsterdam UMC, Amsterdam, the Netherlands
4. Link Medical Research, Oslo, Norway
5. Section of General Internal Medicine, Yale School of Medicine, New Haven, Connecticut
6. Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut
7. Department of Health Policy and Management, Yale School of Public Health, New Haven, Connecticut
8. Department of Population Health, New York University School of Medicine, New York