1. Department of Cardiology, Huazhong University of Science and Technology Union Shenzhen Hospital, Shenzhen, Guangdong 518052, P.R. China
2. Department of Cardiology, Shenzhen Qianhai Shekou Free Trade Zone Hospital, Shenzhen, Guangdong 518067, P.R. China
3. First Clinical Department, Guangdong Medical University, Zhanjiang, Guangdong 524002, P.R. China