KC, Ramesh Kebernik, Julia, Heart Center Bad Segeberg Kedhi, Elvin Kedmi, Ilana Keeble, Thomas R. Keh, Yann Shan Keira, Natsuya Keirns-Davies, Candace Keirns-Davis, Candace Keivanidou, Anastasia, Department of Cardiology, 2nd IKA “Panagia” Hospital, Thessaloniki, Greece Keivanidou, Anastasia, Laboratory of Clinical Neurophysiology, AHEPA Hospital, Medical Faculty, Aristotle University of Thessaloniki, Greece Keles, Nursen, Istanbul Medeniyet University, Faculty of Medicine, Department of Cardiology, Goztepe Training and Research Hospital, Istanbul, Turkey. Keleş, Telat, Yıldırım Beyazıt University, Faculty of Medicine, Department of Cardiology Keleş, Telat, Yıldırım Beyazıt University, Faculty of Medicine, Department of Cardiology, Ankara Kelesoglu, Saban Keller, Dagmar I. Keller, Simon Kelly, Paul R. Kelly, Paul A. Kempa, Andrzej Lubiński i Maciej, II Klinika Chorób Serca Instytutu Kardiologii Akademii Medycznej w Gdańsku Kempa, Maciej Kempa, Maciej, II Klinika Chorób Serca Instytutu Kardiologii Akademii Medycznej w Gdańsku Kempa, Maciej, Department of Cardiology and Electrotherapy, Medical University of Gdansk, Poland (Poland) Kempa, Maciej, 1Clinic of Cardiology and Electrotherapy, 2nd Chair of Cardiology, Medical University of Gdansk, Kempa, Maciej