1. Department of Rheumatology and Clinical Immunology, Graduate School of Medicine, Kyoto University, Kyoto, Japan;
2. Department of Gastroenterology, Shiga General Hospital, Shiga, Japan;
3. Department of Neurology, Graduate School of Medicine, Kyoto University, Kyoto, Japan;
4. Department of Diagnostic Pathology, Graduate School of Medicine, Kyoto University, Kyoto, Japan;
5. Department of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan