1. Four Ward, Taian Disabled Soldiers Hospital of Shandong Province, Taian, China
2. Department of Inspection, Affiliated Hospital of Jining Medical College of Shandong Province, Jining, China
3. Nursing Department, Taian Disabled Soldiers Hospital of Shandong Province, Taian, China
4. Department of Pathology, People’s Hospital of Zhangqiu City, Zhangqiu, China
5. Department of Orthopedics, People’s Hospital of Zhangqiu City, Zhangqiu, China