Ariza Solé, Albert Arkowski, Jacek, Department of Medical Emergencies, Wroclaw Medical University, Poland Arlt, Matthias, Department of Intensive Care Medicine, Kerckhoff Heart and Lung Center, Benekestrasse 2-8, 61231 Bad Nauheim, Germany Armeni, Massimo Arnaoutoglou, Christos Arnaoutoglou, Marianthi Arndt, Juliane Arnold, Roman J. Arribas, Fernando Arroja, José David Arrotti, Salvatore Arroyo, Jose Ramón Ruiz Arroyo Rivera, Belén Arsava, Ethem Murat Arsenescu Georgescu, Catalina, University of Medicine and Pharmacy “Gr. T. Popa”, Iasi, Romania Department of Cardiology, Cardiovascular Diseases Institute “Prof. Dr. George I M Georgescu” Arslan, Sakir Arslan, Ugur, Cardiology Department, Samsun Education and Research Hospital, Samsun, Turkey Arslan, Zekeriya Arslan, Zekeriya, Gulhane Medical Faculty Arslan, Zekeriya, Department of Cardiology, Gulhane Medical Academy Ankara,Turkey Artopoulou, Eleni Arturo Orea T., Arvanitakis, Spyridon Arya, Arash Arya, Arash