1. Department of Clinical Medicine University of Bergen Bergen Norway
2. Department of Neurology Haukeland University Hospital Bergen Norway
3. Department of Medical Biochemistry and Pharmacology Haukeland University Hospital Bergen Norway
4. Department of Clinical Science University of Bergen Bergen Norway
5. Department of Clinical Pharmacology St. Olav University Hospital Trondheim Norway
6. Department of Clinical and Molecular Medicine Norwegian University of Science and Technology Trondheim Norway
7. Department of Global Public Health and Primary Care University of Bergen Bergen Norway
8. Department of Health Registries Norwegian Institute of Public Health Bergen Norway