Kaaz, Konrad, Department and Clinic of Cardiology, Wroclaw Medical University Kabakçi, Giray Kabakçı, Giray Kabakci, Giray, Hacettepe University Faculty of Medicine, Department of Cardiology, Ankara, Turkey. Kabat, Marek Kabir, Alamgir M. Kachel, Mateusz Kaçi, Xhorxhi Kaciczak, Monika Kacprzak, Michal Kacprzak, Michał Kacprzak, Michał, Cardiac Therapy Clinic, Medical University of Lodz, Kacprzak, Michał Kacprzyk, Dawid Kacyba-Mateja, Katarzyna 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