1. School of Nursing, Philippine Women's University, Manila, Philippines
2. Internal Medicine, the Third Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, Henan, China
3. Elderly Ward 1, the Third Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, Henan, China
4. Acupuncture and Moxibustion, the Third Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, Henan, China