1. S. Orsola-Malpighi University Hospital; Division of Angiology and Blood Coagulation M. Golinelli; Via Albertoni 15 Bologna Italy 40138
2. Ospedale Maggiore C.A. Pizzardi; Department of Cardiology; Largo B. Nigrisoli 2 Bologna Italy 40133
3. University of Bologna; Department of Pharmacology; Via Irnerio 48 Bologna Italy 40126
4. Ospedale Maggiore C.A. Pizzardi; Dipartimento Medico I; Largo B. Nigrisoli 2 Bologna Italy 40133