Zembala, Marian, Silesian Center for Heart Diseases, Department of Cardiac Surgery and Transplantology, Medical University of Silesia Zembala, Marian, Department of Cardiac Surgery and Transplantology, Silesian Center for Heart Diseases, Medical University of Silesia, Zabrze, Poland Zembala, Michał Zembala, Michał (Poland) Zembala, Michał Wojtalik i Marian Zencirci, Ertuğrul, Department of Cardiology, Acibadem Maslak Hospital, Istanbul, Turkey Zender, Steffen Zeng, Ni Zeng, Yanjun Zeng, Yong Zeng, Yunhong Zerbe, Franciszek Zeren, Gönül Zerm, Thomas Zespół, zespół, aut. Zetser, Anna Zeynalzadeh, Javad Żełobowska, Katarzyna Zhan, Zhong-Qun, Renmin Hospital of Wuhan University, China Zhang, Chujie, Department of Echocardiography, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai Institute of Medical Imaging, 180 Fenglin Road, Shanghai, China Zhang, Dongfeng Zhang, Fan Zhang, Feifei, Department of Cardiology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China. Zhang, Guo, The Fifth People’s Hospital, Chongqing, China