1. From the Department of Cardiovascular Medicine (S.J.N., S.E.N., S.L.H.) and Center for Cardiovascular Diagnostics and Prevention (S.J.N., Z.W., R.K., B.L., B.D., S.L.H.), Cleveland Clinic Foundation, Cleveland Ohio; Interventional Cardiology Program, Toronto General Hospital, Toronto, Canada (V.D.); Arginox Pharmaceuticals, Redwood City, Calif (O.W.G., D.H.); Coronary Care Unit, Washington Hospital Center, Washington, DC (J.A.P.); and Cardiovascular Clinical Research Center, New York University...