1. From the Department of Cardiovascular Research (S.M., R.L., V.M.), Istituto di Ricerche Farmacologiche “Mario Negri,” Milan, Italy; Ospedale Generale Mazzoni (L.M.), Ascoli Piceno, Italy; CardioCentro Ticino (M.G.R.), Lugano, Switzerland; Ospedale Fracastoro (E.C.), San Bonifacio, Italy; Ospedale Passirana (A.F.), AO “G Salvini,” Garbagnate M.se, Italy; Ospedale San Giovanni di Dio (C.M.), Florence, Italy; Fleming Research (M.V.), Milan, Italy; ANMCO Research Center (A.P.M.), Florence, Italy;...