1. Ward Department, The People's Hospital of Zhangqiu Area, Jinan, Shandong 250200, P.R. China
2. Rehabilitation Department, Jinan Zhangqiu District Hospital of TCM, Jinan, Shandong 250200, P.R. China
3. Department of Clinical Laboratory, The People's Hospital of Zhangqiu Area, Jinan, Shandong 250200, P.R. China
4. Department of Orthopedics, The People's Hospital of Zhangqiu Area, Jinan, Shandong 250200, P.R. China
5. Hemodialysis Department, The People's Hospital of Zhangqiu Area, Jinan, Shandong 250200, P.R. China
6. Rehabilitation Department, Weifang People's Hospital, Weifang, Shandong 261041, P.R. China