1. Department of Cardiology, China‑Japan Union Hospital of Jilin University, Changchun, Jilin 130033, P.R. China
2. Department of Orthopedics, People's Hospital of Jilin Province, Changchun, Jilin 130033, P.R. China
3. Department of Psychology, Changchun Sixth Hospital, Changchun, Jilin 130033, P.R. China