1. Division of Psychiatry, Haukeland University Hospital, Bergen, Norway.
2. Department of Clinical Medicine, Section for Psychiatry, University of Bergen, Bergen, Norway.
3. K.G. Jebsen Centre for Research on Neuropsychiatric Disorders, Bergen, Norway.
4. Olaviken Psychiatric Hospital, Bergen, Norway.
5. Comprehensive Doctors Medical Group, Arcadia, CA, USA.