1. Division of Endocrinology and Metabolism, Department of Internal Medicine, Kurume University School of Medicine, Kurume, Fukuoka, Japan
2. Department of Radiology, Kurume University School of Medicine, Kurume, Fukuoka, Japan
3. Department of Orthopedic Surgery, Kurume University School of Medicine, Kurume, Fukuoka, Japan
4. Department of Diagnostic Pathology, Kurume University Hospital, Kurume, Fukuoka, Japan