1. Interventional Unit, Infermi Hospital, Rivoli Turin Italy
2. AOU San Luigi Gonzaga, Orbassano Turin Italy
3. Division of Cardiology San Giovanni Bosco Hospital Turin Italy
4. Department of Cardiology Aberdeeen Royal Infirmary Aberdeen Scotland
5. Cardiology Unit, Policlinico San Marco, Zingonia BG Bergamo Italy
6. Interventional Cardiology Division, Cardio‐Thoracic Vascular Department San Raffaele Scientific Institute Milan Italy
7. Cardiology Department, Umberto I Hospital Sapienza University of Rome Rome Italy
8. Cardiologia Interventionista, Hospital Clinico San Carlos Madrid Spain
9. Division of Cardiology, Department of Medicine University of Washington Seattle WA USA