1. From the Laboratory of Interventional Cardiology and Department of Cardiology, Clinica Mediterranea, Naples (C.B., G.V., A.F., B.G., R.G., D.C., F.D.M., B.R.); Laboratory of Interventional Cardiology, Vita e Salute University School of Medicine, San Raffaele Hospital, Milan (C.B., A.C.); Istituto Ricovero e Cura a Carattere Scientifico Multimedica, Milan (N.V.R.); and Institute of Biomedical Technologies, National Research Council, Milan (N.V.R.), Italy.