1. Rheumatology and Immunology Department, The Second People's Hospital of Liaocheng, The Second Hospital of Liaocheng Affiliated to Shandong First Medical University, Linqing, P.R. China
2. Liaocheng Dongchangfu District Maternal and Child Health Hospital, Liaocheng, P.R. China
3. Department of Orthopedics, Liaocheng Dongchangfu District Chinese Medicine Hospital, Liaocheng, P.R. China