1. Department of Geriatrics, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Gaungzhou, China
2. Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou, China
3. The First Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, China
4. Department of Cardiology, The Second Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang, China