[1] SS Annunziata Hosp & Univ G DAnnunzio, Inst Cardiol, Cardiol Dept, Chieti, Italy
[2] Azienda USL Toscana Sud Est, Cardiol Dept, Grosseto, Italy
[3] Osped C&G Mazzoni, Ascoli Piceno, Italy
[4] G DAnnunzio, Dept Biostat, Chieti, Italy
[5] Univ Pisa, Dept Cardiol, Pisa, Italy