title: Authors' reply.
authors.affiliation: Department of Cardiology, Dr. Siyami Ersek Cardiovascular and Thoracic Training and Research Hospital, İstanbul, Turkey.
authors.forename: Ahmet Taha
authors.initials: AT
authors.lastname: Alper
authors.affiliation: Department of Cardiology, Dr. Siyami Ersek Cardiovascular and Thoracic Training and Research Hospital, İstanbul, Turkey. adnankaya@gmail.com.
authors.forename: Adnan
authors.initials: A
authors.lastname: Kaya
authors.affiliation: Department of Cardiology, Dr. Siyami Ersek Cardiovascular and Thoracic Training and Research Hospital, İstanbul, Turkey.
authors.forename: Ahmet İlker
authors.initials: Aİ
authors.lastname: Tekkesin
authors.affiliation: Department of Cardiology, Dr. Siyami Ersek Cardiovascular and Thoracic Training and Research Hospital, İstanbul, Turkey.
authors.forename: Ahmet
authors.initials: A
authors.lastname: Öz