1. Department of Rheumatology and Clinical Immunology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
2. Department of Hematology/Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
3. Department of Diagnostic Pathology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
4. Department of the Control for Rheumatic Diseases, Graduate School of Medicine, Kyoto University, Kyoto, Japan