Affiliation: | 1. Department of Dermatology, Kinki University Faculty of Medicine, , Osaka‐Sayama, Japan;2. Department of Hematology and Rheumatology, Kinki University Faculty of Medicine, , Osaka‐Sayama, Japan;3. Department of Rheumatology and Clinical Immunology, Kyoto University Graduate School of Medicine, , Kyoto, Japan |