1. Department of Cardiovascular Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510150, P.R. China
2. Department of Cardiovascular Medicine, Huadu District People's Hospital of Guangzhou, Guangzhou, Guangdong 510000, P.R. China
3. Department of Cardiovascular Medicine, Hexian Memorial Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong 510000, P.R. China
4. Institute for Neurological Research, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510260, P.R. China