Kaczanowski, Radosław Kaczmarczyk, Paweł Kaczmarek, Krzysztof Kaczorowski, Maciej, Students’ Scientific Association, Laboratory for Applied Research on Cardiovascular System, Department of Heart Diseases, Wroclaw Medical University, Wroclaw, Poland Kadish, Alan H. Kadosaka, Takahide Kadota, Muneyuki Kadri, Zena, Division of Cardiology, Hotel Dieu de France Hospital, St. Joseph University, Beirut, Lebanon Kądziela, Jacek Kądziela, Jacek, Institute of Cardiology, Warsaw, Poland Kądziela, Jacek, Institute of Cardiology, Warsaw, Poland (Poland) Kafi, Mohammad Kaftan, Havane Asuman, Pamukkale University School of Medicine, Department of Cardiology Kaftan, Havane Asuman, Pamukkale University Medical Faculty Department of Cardiology Kahlert, Philipp Kahr, Peter C. Kahraman, Erkan, Tekirdag State Hospital Kahveci, Gokhan, Kartal Kosuyolu Heart Education and Research Hospital, Istanbul Kahya Eren, Nihan, Atatürk Education and Research Hospital, Department of Cardiology, İzmir Kahya Eren, Nihan, Ataturk Training and Research Hospital, Department of Cardiology, Izmir, Turkey Kai, Zhang Kaiser, Elisabeth, Heart Institute (InCor), Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, Brazil Kakar, Puneet Kaklamanis, Loukas Kala, Petr