Arbustini, Eloisa Archontakis, Stefanos Ardic, Idris Arendarczyk, Adam Arévalo-Abascal, Adolfo, Cardiac Surgery Department. University Hospital of Salamanca Arévalo-Abascal, Adolfo Arghami, Arman Arıbal, Serkan, Gata Haydarpasa Teaching Hospital, Istanbul, Turkey Aribal, Serkan, Department of Radiology, Aksaz Military Hospital, Mugla Arif, Salech, Instytut Kardiologii UJ CM Arif, Salech, 2nd Department of Interventional Cardiology, University Hospital, Krakow, Poland (Poland) Arif, Saleh Arık, Osman Ziya, Gümüşhane State Hospital, Gümüşhane, Turkey Aripov, Marat, “National Research Centre for Cardiac Surgery” JSC, Astana Medical University, Kazakhstan Arkowski, Jacek Arkowski, Jarosław Armatowicz, Paul Armatowicz, Paul Armut, Mustafa Arnáiz, Javier, University Hospital of Salamanca Arnáiz, Javier Arnáiz-García, Ana María, Internal Medicine Department. University Hospital Marques de Valdecilla. Santander, Spain Arnáiz-García, María Elena, Cardiac Surgery Department, University Hospital of Salamanca, Salamanca, Spain Arnáiz-García, María Elena, Cardiac Surgery Department, University Hospital of Salamanca, Paseo San Vicente, Salamanca, Spain Arnáiz-García, María Elena