1. Department of Pharmacology and Toxicology, University of North Dakota (B.Y.H., L.L.C.), Grand Forks, North Dakota 58203
2. Department of Anesthesiology, Medical College of Wisconsin (A.S., Z.J.B., W.M.K.), Milwaukee, Wisconsin 53226
3. Department of Pharmacology and Toxicology, College of Medicine, University of Arkansas for Medical Sciences (P.L.P.), Little Rock, Arkansas 72205
4. College of Pharmacy and Department of Molecular and Cellular Physiology, College of Medicine, University of Cincinnati Medical Center (A.R.B.), Cincinnati, Ohio 45069