1. Department of Cardiology, Central Hospital of Panyu District, Guangzhou, China
2. Department of Cardiology, Guizhou Provincial People’s Hospital, Guiyang, China
3. Department of Cardiology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
4. NHC Key Laboratory of Assisted Circulation, Sun Yat-Sen University, Guangzhou, China
5. Department of Cardiac Ultrasound, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China