1. Department of Geriatrics, The First People’s Hospital of Yunnan Province, Kunming, Yunnan, China
2. The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
3. Medical Faculty, Kunming University of Science and Technology, Kunming, Yunnan, China
4. Department of Clinical Psychology, The First People’s Hospital of Yunnan Province, Kunming, Yunnan, China