1. Division of Rheumatology/Allergy and Clinical Immunology, University of California at Davis, Davis, California, USA
2. Institute of Bio‐Active Science, Nippon Zoki Pharmaceutical Co., Ltd., Kinashi, Hyogo, Japan
3. The Jackson Laboratory, Bar Harbor, Maine, USA
4. Department of Pathology and Laboratory Medicine and Josson Comprehensive Cancer Center, School of Medicine, University of California, Los Angeles, California, USA
5. Department of Pathology, Emory University School of Medicine, Atlanta, Georgia, USA
6. First Department of Pathology, Transplantation Center, Kansai Medical University, Moriguchi, Osaka, Japan