[1] Sichuan Acad Med Sci, Dept Cardiol, 32 W Sec 2,1st Ring Rd, Chengdu, Sichuan, Peoples R China
[2] Univ Elect Sci & Technol China, Sichuan Prov Peoples Hosp, 32 W Sec 2,1st Ring Rd, Chengdu, Sichuan, Peoples R China
[3] Sichuan Acad Med Sci, Dept Intens Care Unit, Chengdu, Sichuan, Peoples R China
[4] Univ Elect Sci & Technol China, Sichuan Prov Peoples Hosp, Chengdu, Sichuan, Peoples R China