[1] Policlin, Osped Maggiore, Milan, Italy
[2] Hosp Badalona Germans Trias & Pujol, Badalona, Spain
[3] Cardiovasc Inst Paris Sud ICPS, Massy, France
[4] Tor Vergata Polyclin, Rome, Italy
[5] Civil Hosp Pugliese, Catanzaro, Italy
[6] Ctr CVD, Belgrade, Serbia
[7] Civil Hosp Mirano, Mirano, Italy
[8] CHU Vaudois, CH-1011 Lausanne, Switzerland
[9] Angiocor, Barcelona, Spain
[10] Clin Ctr Serbia, Inst Cardiovasc Dis, Belgrade, Serbia