1 Department of Cardiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China.
2 Department of Emergency, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China.
3 Department of Cardiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China. Electronic address: drrlilang@126.com.