Kern, Adam Kerr, Andrew Keskin, Gokhan Khachatryan, Aleksan Khaledifar, Arsalan, Cardiology Department, School of medicine, Cardiologist, Hajar Hospital, shahrekord University of Medical Sciences. Shahrekord, Iran. Khamse, Safoura Khan, Jaffar Khan, Jamal Nasir Khan-Kheil, Mehtab Mehtab Khand, Aleem Khandalwal, Amit Kharal, Ghulam A. Kharal, Mubashar Khattab, Elina Khedi, Elvin Kheifets, Mark Khokhar, Arif A. Khokhar, Arif A Khoury, Mazen Kianicka, Bohuslav, University Hospital St. Anna and Masaryk University Kicińska, Anna Kiczmer, Pawel Kidawa, Michał, Department of Intensive Cardiac Care, Medical University of Lodz, USK im WAM-CSW, ul. Sterlinga 1/3, Lodz, Poland Kidawa, Michał Kidawa, Michał