1. Department of Clinical Medicine; University of Bergen; Bergen Norway
2. Department of Neurology; Haukeland University Hospital; Bergen Norway
3. Division of Psychiatry; Bergen Mental Health Research Centre; Haukeland University Hospital; Bergen Norway
4. Department of Global Public Health and Primary Care; University of Bergen; Bergen Norway
5. Division of Epidemiology; Norwegian Institute of Public Health; Bergen Norway
6. Department of Clinical Pharmacology; St. Olav University Hospital; Trondheim Norway
7. Department of Laboratory Medicine; Children's and Women's Health; Norwegian University of Science and Technology; Trondheim Norway