1. Department of Cardiology; West China Hospital; Sichuan University; Chengdu Sichuan Province China
2. Department of Cardiovascular Ultrasound and Noninvasive Cardiology; Sichuan Academy of Medical Science & Sichuan Provincial People's Hospital; School of Clinical Medicine; University of Electronic Science and Technology of China; Chengdu Sichuan Province China
3. Department of Health Statistics; School of Public Health; Sichuan University; Chengdu Sichuan Province China