1. Department for Health Management and Health Economics, University of Oslo, Oslo, Norway
2. Centre for Quality Improvement in Medical Practices (SKIL), Bergen, Norway
3. Norwegian Medicines Agency, Oslo, Norway
4. Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
5. Research Unit for General Practice, NORCE Norwegian Research Centre, Bergen, Norway
6. Akershus University Hospital, Nordbyhagen, Norway