1. Department of Diagnostic Pathology, Yokohama City University Hospital, Yokohama, Kanagawa, Japan
2. Department of Molecular Pathology, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan
3. Department of Orthopaedic Surgery, Yokohama City University Hospital, Yokohama, Kanagawa, Japan
4. Department of Diagnostic Radiology, Yokohama City University Hospital, Yokohama, Kanagawa, Japan