1. Division of Cardiology, Department of Medical Science University of Turin Turin Italy
2. Coronary Care Unit University of Pavia and Fondazione IRCCS Policlinico S. Matteo Pavia Italy
3. Department of Cardiology Amphia Hospital Breda the Netherlands
4. Department of Cardiology San Luigi Gonzaga University Hospital Turin Italy
5. Interventional Cardiology Unit GVM Care and Research Maria Cecilia Hospital Cotignola Italy
6. Department of Cardiology Montefiore Medical Center Bronx New York USA
7. Department of Clinical and Experimental Medicine, Policlinic "G. Martino" University of Messina Messina Italy