1. Center for Alternative Medicine and 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 Alternative Medicine, School of Medicine, Minneapolis, Minnesota.
4. Center for Alternative Medicine and Department of Medicine, Hennepin County Medical Center, Minneapolis, Minnesota.