Demirbas, Seref Demircioglu, Kenan, Istanbul Medeniyet University, Faculty of Medicine, Department of Cardiology, Goztepe Training and Research Hospital, Istanbul, Turkey. Demirdogen, Ezgi, Uludağ University,School of Medicine, Department of Pulmonary Medicine, Bursa,Turkey Demirel, Atalay Demiri, Edis Demirkol, Sait, Department of Cardiology, Gulh ane Medical Academy Demirkol, Sait Demirkol, Sait, Department of Cardiology, Gulhane Medical Academy, Gulhane School of Medicine (Türkiye) Demırkol, Sait, Gulhane Medical Faculty Demırkol, Sait, Department of Cardiology, Gulhane Medical Academy Ankara,Turkey Demırkol, Sait, Gulhane Medical Faculty, Dept. of Cardiology, Ankara, Turkey (Türkiye) Demirtas, Sinan Demkow, Marcin Demkow, Marcin Demkow, Marcin, Department of Coronary Artery Disease and Structural Heart Diseases, Institute of Cardiology Warsaw (Poland) Demkow, Marcin Demola, Pierluigi Dempfle, Carl-Erik Denegri, Andrea, University Hospital Zurich, University Heart Center, Department of Cardiology, Raemistrasse 100, 8091 Zurich, Switzerland Cardiology Unit and Laboratory of Cardiovascular Biology, AOU-IRCCS San Martino-IST - Department of Internal Medicine, University of Genova, Genova, Italy Denegri, Andrea (Italy) Denfeld, Quin Deniz, Ali, Department of Cardiology, Faculty of Medicine, Hacettepe University, Ankara, Turkey Deniz, Ali Deptuła, Elżbieta Derbisz, Kamil