1. From the Department of Cellular and Integrative Physiology (I.H.Z., J.F.H., K.G.C., B.A.H., N.R.A.), University of Nebraska Medical Center, Omaha; CVRx, Inc (R.K., D.J.S., M.A.R.), Maple Grove, Minn; North Memorial Medical Center (E.D.I.), Robbinsdale, Minn; and the Department of Pharmacology (J.D.P.), Midwestern University, Downers Grove, Ill.