Zhao, Qiuyang Zhao, Shuan Zhao, Shui-ping Zhao, Wei Zhao, Xiliang Zhao, Xue-Yan Zhao, Yanshu Zhao, Yejing Zhao, Ying-ying Zhao, Yingxin Zhao, Yong, Shandong Provincial Hospital affiliated to Shandong University Zhao, Zhen Zhao, Zhen-Gang, West China Hospital, Sichuan University Zhao, Zhen-Gang Zhao, Zhenzhou, Department of Cardiology, People's Hospital of Zhengzhou University, Zhengzhou University Zhao, Zhihui Zhao, Zhiwei Zheng, Bo Zheng, Chengbin Zheng, Dong-Yan, Department of Ultrasound in Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Institute of Ultrasound in Medicine, Shanghai, China. Zheng, Kang-Chun Zheng, Lihui Zheng, Ming-Xia, West China Hospital, Sichuan University Zheng, Xingchun, Department of Cardiology, Fujian Medical University Union Hospital Zheng, Ying-Ying