1. From the Department of Medicine (D.W.W., A.L.G.), Vanderbilt University, Nashville, Tenn; Section of Cardiology (L.C., P.J.S.), Department of Lung, Blood and Heart, University of Pavia; Department of Cardiology (L.C., P.J.S.) and Molecular Cardiology Laboratory (L.C., M.P., P.J.S.), IRCCS Fondazione Policlinico S. Matteo, Pavia, Italy; Division of Cardiology (W.S.), Department of Internal Medicine, Department of Pediatric Cardiology (K.K., A.M.), Department of Perinatology (T.I.), National...