1. Guangzhou Institute of Cardiovascular Disease, Guangdong Key Laboratory of Vascular Diseases, State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou 510260, P. R. China
2. Department of Laboratory Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510220, P. R. China
3. Department of Emergency, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou 510260, P. R. China