1. From the Heart and Lung Institute and the Division of Cardiology, Department of Internal Medicine (N.I.M., P.J.G.-C.), and Neurobiotechnology Center (P.E.K, J.P.-T.), College of Medicine and Public Health, Ohio State University, Columbus, Ohio, and the Department of Pediatrics (S.D.S), Washington University School of Medicine, Barnes-Jewish Hospital, St. Louis, Mo.