1. Department of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan
2. Department of Orthopaedic Surgery, Osaka City General Hospital, Osaka, Japan
3. Department of Orthopaedic Surgery, Shimada Hospital, Habikino, Japan
4. Division of Inflammation Research, Centre for Molecular Medicine, Jichi Medical University, Shimotsuke, Japan