Konstantinos E. Hatzistergos, Henry Quevedo , Behzad N. Oskouei , Qinghua Hu , Gary S. Feigenbaum , Irene S. Margitich , Ramesh Mazhari , Andrew J. Boyle , Juan P. Zambrano , Jose E. Rodriguez , Raul Dulce , Pradip M. Pattany , David Valdes , Concepcion Revilla , Alan W. Heldman , Ian McNiece , Joshua M. Hare From the Interdisciplinary Stem Cell Institute (K.E.H., H.Q., B.N.O., Q.H., G.S.F., I.S.M., J.P.Z., J.E.R., R.D., P.M.P., D.V., A.W.H., I.M., J.M.H.); and Cardiovascular Division, Department of Medicine (Q.H., J.P.Z., A.W.H., I.M., J.M.H.), Leonard M Miller School of Medicine, Miami, Fla; Division of Cardiology (R.M.), George Washington University, Washington DC; Division of Cardiology (A.J.B.), Department of Medicine, UCSF Heart and Vascular Center, University of California, San Francisco; and Dpto Biotecnologa (C.R.), Instituto Nacional de Investigacin y Tecnologa Agraria y Alimentaria (INIA), Madrid, Spain. Correspondence to Joshua M. Hare, MD, University of Miami Miller School of Medicine, Interdisciplinary Stem Cell Institute, 1501 NW 10th St, Suite 824, Miami, FL 33136. E-mail jhare@med.miami.edu