1. From the Veterans Affairs Medical Center, Cardiology Department (P. Kokkinos, J.P.K., A.P., P.N., A.M., P. Karasik, M.G., V.P.) and Georgetown University School of Medicine (P. Kokkinos, S.S.), Washington, DC, and Veterans Affairs Palo Alto Health Care System, Cardiology Division, and Stanford University, Stanford, Calif (J.M.).