Karagöz, Ahmet Karahan, Zulkuf, Diyarbakır Gazi Yaşargil Education and Research Hospital , Cardiology Department Karahan, Zulkuf Karakas, Mehmet Fatih Karakas, Mustafa Serkan Karakawa, Masahiro Karakaya, Ekrem Karakoyun, Suleyman Karakulak, Uğur Karakulak, Ugur Nadir, Occupational Diseases Hospital, Cardiology Department, Ankara Turkey. Karakulak, Ugur Nadir, Occupational Diseases Hospital, Department of Cardiology, Ankara (Türkiye) Karakulak, Ugur Nadir Karakurt, Huseyin, Mehmet Akif Ersoy Thoracic and Cardiovascular Surgery Training and Research Hospital Karakurt, Sait Karakus, Gültekin Karaman, Birsen Karamasis, Grigoris Karamasis, Grigoris V. Karasek, Danuta Karaszewska, Anna, Department of General Nursery Department of Pediatrics, Hematology, Oncology, Medical University of Gdansk, Poland Karatas, Mehmet Baran Karavidas, Apostolos, Department of Cardiology, Athens General Hospital, Greece Karbarz, Dariusz Karbowska, Eryka Karcaaltincaba, Musturay