1. Department of Rheumatology and Clinical Immunology, Kyoto University Graduate School of Medicine, Kyoto, Japan;
2. Department of Endocrinology and Rheumatology, Kurashiki Central Hospital, Kurashiki, Japan;
3. Department of Diagnostic Pathology, Kyoto-Katsura Hospital, Kyoto, Japan;
4. Department of the Control for Rheumatic Diseases, Kyoto University Graduate School of Medicine, Kyoto, Japan;
5. Department of Diagnostic Pathology, Kyoto University Graduate School of Medicine, Kyoto, Japan