1. Department of Rheumatology and Immunology, General Hospital of Central Theater Command, Wuhan, Hubei 430070, P.R. China
2. Department of General Surgery, General Hospital of Central Theater Command, Wuhan, Hubei 430070, P.R. China
3. Department of Orthopedics, Central People's Liberation Army Central Theater, Wuhan, Hubei 430070, P.R. China
4. Department of Orthopedics, Graduate School of Hubei University of Traditional Chinese Medicine, Wuhan, Hubei 430061, P.R. China