Xu, Yuan-Ning, West China Hospital, Sichuan University Xu, Yuchen, Department of Echocardiography, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai Institute of Medical Imaging, 180 Fenglin Road, Shanghai, China Xu-ping, Li Xue, Jian-fang Xue, Ning, Qingdao Municipal Health and Family Planning Science and Technology Education Center Xue, Qiao, Institute of Geriatric Cardiology, Chinese PLA General Hospital, Beijing, China Xue, Yangjing, The Second Hospital of Wenzhou Medical University Xue, Yuan Xue, Yuguo Xylomenos, George Yaegashi, Taku Yaghoubi, Alireza Yahav-Shafir, Dana Yakar, Fatih, Bezmi Alem University,School of Medicine, Department of Pulmonary Medicine, İstanbul,Turkey Yakar, Tolga Yakar Tuluce, Selcen, Ataturk Training and Research Hospital, Department of Cardiology, Izmir, Turkey Yakisan, Turab, Mehmet Akif Ersoy Thoracic and Cardiovascular Surgery Training and Research Hospital, Department of Cardiology, Istanbul Yakubtsevich, Ruslan Yakupoglu, Haci Yakup Yalcin, Ahmet Arif, Mehmet Akif Ersoy Thorasic and Cardiovascular Surgery Training and Research Hospital Yalcin, Ahmet Arif, Mehmet Akif Ersoy Thoracic and Cardiovascular Surgery Training and Research Hospital (Türkiye) Yalcin, Funda, Harran University Yalçin, Subhan Yalcin, Yalim Yalcinkaya, Emre, Gulhane Military Medical Faculty, Department of Cardiology,Ankara, Turkey