1. Department of Pharmacology, University of Minnesota Medical School, Minneapolis, Minnesota 55455, United States
2. Department of Veterinary Population Medicine, University of Minnesota Veterinary School, Minneapolis, Minnesota 55455, United States
3. Allegheny Health Network, Neuroscience Research Institute, Pittsburgh, Pennsylvania 15212, United States
4. RTI International, Raleigh, North Carolina 27616, United States
5. Department of Medicine, Hennepin Healthcare Research Institute, Minneapolis, Minnesota 55415, United States
6. Department of Psychiatry, Columbia University Irving Medical Center, and the New York State Psychiatric Institute, New York, New York 10027-6902, United States
7. Center for Immunology, University of Minnesota Medical School, Minneapolis, Minnesota 55455, United States