1. From the Department of Clinical and Experimental Medicine, University of Pisa, Italy (R.M.B., A.V.)
2. Clinica Medica, Department of Medicine and Surgery, University of Milano-Bicocca, Italy (G.G.)
3. Cardiologia, Ospedale S. Luca, IRCCS Istituto Auxologico Italiano, Milano (G.S.)
4. Cardiology Division, Clinical and Molecular Medicine Department, Sant’Andrea Hospital, Sapienza University of Rome, Italy (C.S.)
5. Clinica Medica, Department of Clinical and Experimental Sciences, University of Brescia, Italy (D.R.)
6. and Istituto Clinico Città di Brescia, Division of Medicine, Italy (D.R.).