Wang, Yushu. Department of Cardiology, West China Hospital, Sichuan University, 37 Guoxue Street, Chengdu, 610041, Sichuan, China. Shi, Xiuli. Department of Cardiology, West China Hospital, Sichuan University, 37 Guoxue Street, Chengdu, 610041, Sichuan, China. Du, Rongsheng. Department of Cardiology, West China Hospital, Sichuan University, 37 Guoxue Street, Chengdu, 610041, Sichuan, China. Chen, Yucheng. Department of Cardiology, West China Hospital, Sichuan University, 37 Guoxue Street, Chengdu, 610041, Sichuan, China. Zhang, Qing. Department of Cardiology, West China Hospital, Sichuan University, 37 Guoxue Street, Chengdu, 610041, Sichuan, China. zhangqingdoc@126.com.