Erdogan, Guney Erdogan, Ilkay, Baskent University Medical Faculty, Department of Pediatric Cardiology, Ankara/Turkey Erdogan, Okan Erdogan, Sıddık, Department of Cardiology, Gulhane Medical Faculty Ereciński, Jan Ereciński, Janina Aleszewicz-Baranowska i Jan Erek Toprak, Aybala, Istanbul Medeniyet University, Faculty of Medicine, Department of Biochemistry, Goztepe Training and Research Hospital, Istanbul, Turkey. Eren, Fatih Eren, Mehmet Eren, Mehmet, Department of Cardiology, Training and Research Hospital, Siyami Ersek Thoracic and Cardiovascular Surgery Center, Istanbul, Turkey (Türkiye) Eren, Nihan Kahya Eren, Nihan Kahya, Department of Cardiology, Ataturk Education and Research Hospital, Izmir, Turkey Eren, Önder Erer, Hatice Betül Ergelen, Mehmet Ergene, Oktay, Department of Cardiology, Faculty of Medicine, Izmir Dokuz Eylul University, Izmir, Turkey Ergul, Nurhan Ergul, Yakup, Department of Pediatric Cardiology, Istanbul University, Istanbul Faculty of Medicine, Turkey Ergul, Yakup Ergul, Yakup Erhart, Ladina Eriksson, Urs Eriksson, Urs (Switzerland) Erkan, Hakan Erkan, Hakan