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 Zhiqiang, Chen Zhong, Bin, Department of Cardiology, The Fifth People’s Hospital, Chongqing, China Zhong, Qing-hua Zhong, Wenliang, Department of Cardiology, Fujian Medical University Union Hospital Zhong, Xueke Zhou, Changyu Zhou, Daxin Zhou, Jingxin Zhou, Lin, Division of Cardiology, Tongji Hospital, Tongji University School of Medicine Zhou, Meijian Zhou, Minggang