Surgit, Ozgur, Department of Cardiology, Mehmet Akif Ersoy Thoracic and Cardiovascular Surgery Center, Training and Research Hospital, Istanbul/TURKEY Surkova, Elena, Department of Cardiac, Thoracic, and Vascular Sciences, University of Padua School of Medicine, Padua, Italy Department of Internal Medicine, Samara State Medical University, Samara, Russian Federation Surmacz, Rafał, Uniwersytet Medyczny im. Karola Marcinkowskiego w Poznaniu Surmacz, Rafał, Klinika Kardiologii i Nefrologii Dziecięcej, Uniwersytet Medyczny im. K. Marcinkowskiego, Poznań (Poland) Surmacz, Rafał Surmacz, Rafał Surowiec, Agnieszka Surowiec, Sławomir, I Department of Cardiology and Hypertension, Institute of Cardiology, Jagiellonian University Medical College, Krakow Surowiec, Sławomir, I Department of Cardiology and Hypertension, Institute of Cardiology, Jagiellonian University Medical College, Krakow Surowiec, Sławomir, 1st Department of Cardiology, Interventional Electrocardiology and Arterial Hypertension, Hospital University, Jagiellonian University, Medical College, Krakow, Poland Surowiec, Sławomir Surowiec, Sławomir Sus, Ioana Susuł, Michał Sut, Agnieszka Sutcu, Recep Suter, Thomas M. Suter, Thomas M. Sutherland, Michael Sutton, Richard Sutton, Richard Suwalski, Grzegorz Suwalski, Kazimierz Suwalski, Kazimierz B. Suwalski, Piotr