[1] Rovigo Gen Hosp, Dept Cardiol, Rovigo, Italy
[2] Univ Ferrara, Dept Med Sci, Sect Internal & Cardiopulm Med, Ferrara, Italy
[3] Rovigo Gen Hosp, Cardiovasc Diag & Endoluminal Intervent, Sect Adult Congenital & Adult Heart Dis, Rovigo, Italy
[4] Rovigo Gen Hosp, Dept Gastroenterol, Rovigo, Italy
[5] Rovigo Gen Hosp, Dept Gen Surg, Rovigo, Italy