1. Center for Coronary Artery Disease Minneapolis Heart Institute and Minneapolis Heart Institute Foundation, Abbott Northwestern Hospital Minnesota Minneapolis USA
2. Department of Cardiology Freeman Hospital Newcastle upon Tyne UK
3. Division of Cardiology, Department of Medicine Baylor College of Medicine Texas Houston USA
4. Division of Cardiology MediClin Herzzentrum Lahr Lahr Germany
5. Division of Structural Interventional Cardiology, Department of Clinical & Experimental Medicine Careggi University Hospital Florence Italy
6. Department of Invasive Cardiology Meshalkin Novosibirsk Research Institute Novosibirsk Russia
7. Division of Cardiology Athens Naval and Veterans Hospital Athens Greece