1. Heartcenter Trier, Krankenhaus der Barmherzigen Brüder Trier , Trier , Germany
2. UOC Interventistica Cardiologica e Diagnostica Invasiva, Fondazione Policlinico Gemelli IRCCS and Università Cattolica del Sacro Cuore , Rome , Italy
3. Department of Cardiology, St Vinzenz Hospital Cologne , Cologne , Germany