[1] Osped Civilo ARNAS, Div Cardiol, Palermo, Italy
[2] Fdn Poliambulanza, Biescia, Italy
[3] Casa Cura Citta Studi, Div Cardiol, Milan, Italy
[4] Clin Gavazzeni Humanitas, Div Cardiol, Bergamo, Italy
[5] Osped Grosseto, Div Cardiol, Grosseto, Italy
[6] Osped Careggi, Div Cardiol, Florence, Italy