1. Department of Vascular, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610072, Sichuan, PR China
2. Department of Nursing, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610072, Sichuan, PR China
3. Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610072, Sichuan, PR China