1. Saha Cardiovascular Research Center and Department of Physiology, University of Kentucky (A.D.).
2. Departments of Medicine and Cell Biology and the Cardiovascular Research Center, New York University Langone Medical Center (E.A.F.).
3. School of Medicine and Dentistry, University of Rochester (M.B.T.).
4. Departments of Internal Medicine, and Neurosciences and Pharmacology, University of Iowa (D.D.H.).
5. Department of Medicine, David Geffen School of Medicine at UCLA (A.M.F.).