[1] Univ Florida, Div Cardiol, Coll Med, 655 West 8th St, Jacksonville, FL 32209 USA
[2] Magna Graecia Univ Catanzaro, Dept Med & Surg Sci, Div Cardiol, Catanzaro, Italy
[3] Univ Catania, Div Cardiol, AOU Policlin Vittorio Emanuele, Catania, Italy
[4] Icahn Sch Med Mt Sinai, Zena & Michael A Wiener Cardiovasc Inst, New York, NY USA
[5] Harvard Med Sch, Beth Israel Deaconess Med Ctr, Dept Med, Cardiovasc Div, Boston, MA USA