1. Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
2. Department of Radiology, Hwa Mei Hospital, University of Chinese Academy of Sciences, Ningbo, P.R. China
3. Department of Orthopaedic Surgery, the Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China