1. Division of Psychiatry, Department of Research and Development, St. Olav University Hospital, Trondheim, Norway.
2. Department of Laboratory Medicine, Children's and Women's Health, Norwegian University of Science and Technology, Trondheim, Norway.
3. Clinical Pharmacology Service, Teófilo Hernando Institute, Hospital Universitario de la Princesa, Madrid, Spain.
4. Department of Clinical Pharmacology, St. Olav University Hospital, Trondheim, Norway.