1. Department of Allergy and Clinical Immunology, Chiba University Hospital, Chiba, Japan
2. Third Department of Internal Medicine, University of Yamanashi, Chuo, Japan
3. Department of Internal Medicine, Chiba Aoba Municipal Hospital, Chiba, Japan
4. Allergy and Clinical Immunology Center, Japanese Red Cross Narita Hospital, Narita, Japan
5. Department of Rheumatology, Shimoshizu Hospital, National Hospital Organization, Yotsukaido, Japan
6. Department of Rheumatology and Clinical Immunology, Saitama Medical Center, Saitama Medical University, Kawagoe, Japan
7. Department of Internal Medicine, Matsudo City Hospital, Matsudo, Japan
8. Department of Internal Medicine, Teikyo University School of Medicine, Tokyo, Japan
9. Department of Rheumatology, Dokkyo Medical University, Tochigi, Japan
10. Department of Rheumatology, Yokohama Rosai Hospital, Yokohama, Japan
11. Department of Rheumatology, National Hospital Organization Chiba-East Hospital, Chiba, Japan
12. Division of Rheumatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
13. Department of Rheumatology, Endocrinology, and Nephrology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
14. Department of Nephrology and Rheumatology, Gunma University Graduate School of Medicine, Maebashi, Japan
15. Research Center for Allergy and Clinical Immunology, Asahi General Hospital, Chiba, Japan
16. Clinical Research Center, Chiba University Hospital, Chiba, Japan
17. for the LoVAS Collaborators