1. Veterans Affairs Medical Center (W.C.D., R.G.B., F.G.H.), Omaha, Nebraska 68105
2. Departments of Medicine (W.C.D., F.G.H.), University of Nebraska Medical Center, Omaha, Nebraska 68193-3020
3. Biochemistry and Molecular Biology (W.C.D., R.G.B.), University of Nebraska Medical Center, Omaha, Nebraska 68193-3020
4. Pharmacology (F.G.H.), University of Nebraska Medical Center, Omaha, Nebraska 68193-3020