Kato, Shingo Kato, Takeshi, Department of Disease Control and Homeostasis, Kanazawa University Graduate School of Medical Science, Kanazawa, Ishikawa, Japan Kato, Toshimitsu Kato, Yoshiya Kato, Yuta Katsarou, Ourania Katsiki, Niki, 2nd Department of Internal Medicine, Medical School, Aristotle University of Thessaloniki, Hippocration Hospital Kattea, M. Obadah, Prince Sultan Cardiac Center Qassim, PSCCQ Burydah Qassim Saudi Arabia Katyńska, Izabela, Poznań University of Medical Sciences Cardiac Surgery and Transplantology Department Kaufmann, Beat A. Kaufmann, Damian Kaufmann, Damian K. Kaufmann, Manuel Kaura, Amit, MBBS Kavvouras, Charalampos Kawabata, Kazuyo Kawalec, Anna Turska-Kmieć. Wanda Kawalec, Wanda Kawasaki, Atsushi Kawata, Hiroyuki Kawczyńska, Maria Kawecka-Jaszcz, Danuta Fedak i Kalina Kawecka-Jaszcz, Kalina Kawecka-Jaszcz, Kalina, I Department of Cardiology and Hypertension, Institute of Cardiology, Jagiellonian University Medical College Kawecka-Jaszcz, Krzysztof Żmudka i Kalina