1. From the Cardiovascular Department “Ospedali Riuniti and University of Trieste,” Trieste, Italy (A.G.P., F.B., P.L., E.F., G.S.); Molecular Medicine Department, Institute for Maternal and Child Health, IRCCS Burlo Garofolo, Trieste, Italy (G.M.S.); and Cardiovascular Institute and Adult Medical Genetics, Department of Medicine, University of Colorado Denver, Aurora (M.R.G.T., L.M.).