1. The First Hospital of Hunan University of Chinese Medicine, Department of Geriatrics, No. 95 Shaoshan Middle Road, Yuhua District, Changsha City, Hunan Province, China
2. Hunan University of Chinese Medicine, Graduate School, Xiangzui Road, Yuelu District, Changsha City, Hunan Province, China
3. Hunan University of Chinese Medicine, School of Traditional Chinese Medicine, Xiangzui Road, Yuelu District, Changsha City, Hunan Province, China
4. The First Hospital of Hunan University of Chinese Medicine, Department of Cardiovascular Diseases, No. 95 Shaoshan Middle Road, Yuhua District, Changsha City, Hunan Province, China