1. Center for Addiction and Alternative Medicine Research, Department of Medicine, Hennepin County Medical Center, and the University of Minnesota, School of Medicine, Minneapolis, Minnesota.
2. Department of Medicine, Hennepin County Medical Center, and the University of Minnesota, School of Medicine, Minneapolis, Minnesota.
3. Center for Addiction and Alternative Medicine Research, School of Medicine, Minneapolis, Minnesota.
4. Center for Addiction and Alternative Medicine Research, Department of Medicine, Hennepin County Medical Center, School of Medicine, Minneapolis, Minnesota.