1. Division of Rheumatology, Department of Internal Medicine, Tokyo Women’s Medical University School of Medicine , Tokyo, Japan
2. Department of Nephrology and Rheumatology, Kyorin University School of Medicine , Tokyo, Japan
3. Department of Internal Medicine and Rheumatology, Juntendo University Faculty of Medicine , Tokyo, Japan
4. Division of Hematology, Rheumatology and Respiratory Medicine, Department of Internal Medicine, Faculty of Medicine, Kagawa University , Kagawa, Japan
5. Medical Research Department, Kissei Pharmaceutical Co., Ltd. , Tokyo, Japan
6. Clinical Projects Management Department, Kissei Pharmaceutical Co., Ltd. , Tokyo, Japan