1. From Abteilung Kardiologie und Angiologie (U.L., S.S., H.T., R.W., C.K., B.H., H.D.), Medizinische Hochschule Hannover, Hannover, Germany, and Division of Cardiology (U.L., S.S., S.D., D.G.H.), Emory University School of Medicine and the Atlanta Veterans Administration Hospital, Atlanta, Ga.