[1] Univ Palermo, Dept Hlth Promot Mother & Child Care Internal Med, Palermo, Italy
[2] Univ Hosp P Giaccone, Cardiol Unit, Palermo, Italy
[3] Univ Lisbon, Ctr Cardiovasc Univ Lisboa CCUL, Fac Med, CAML, Lisbon, Portugal
[4] Hosp Univ Santa Maria, Serv Cardiol, CHULN, Lisbon, Portugal
[5] Maria Cecilia Hosp, Grp Villa Maria Care & Res, Cotignola, Italy
[6] Anthea Hosp, Bari, Italy
[7] Univ Liege Hosp, Dept Cardiol, Heart Valve Clin, GIGA Cardiovasc Sci,CHU Sart Tilman, Liege, Belgium