1. Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangdong Academy of Medical Sciences, The First Affiliated Hospital of South China University of Technology, Guangzhou, China
2. Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Hypertension Research Laboratory, Guangdong General Hospital, Guangdong Academy of Medical Sciences, The First Affiliated Hospital of South China University of Technology, Guangzhou, China
3. Department of Cardiology, Community Health Center of Liao Bu County, Dongguan, China