1. Department of Allergy and Rheumatology, Nippon Medical School Graduate School of Medicine , Bunkyo-ku, Tokyo 113-8602, Japan
2. Department of Internal Medicine and Rheumatology, Juntendo University Faculty of Medicine , Bunkyo-ku, Tokyo 113-8421, Japan
3. Department of Rheumatology, Tokyo Medical and Dental University , Bunkyo-ku, Tokyo 113-8519, Japan
4. Department of Allergy and Rheumatology, Graduate School of Medicine, The University of Tokyo , Bunkyo-ku, Tokyo 113-0033, Japan
5. Medilead Inc., Tokyo Opera City Tower , Shinjuku-ku, Tokyo 163-1424, Japan
6. Chugai Pharmaceutical Co., Ltd. , Chuo-ku, Tokyo 103-8324, Japan
7. Department of Health Economics & Outcomes Research, Graduate School of Pharmaceutical Sciences, The University of Tokyo , Bunkyo-ku, Tokyo 113-0033, Japan
8. Unit of Public Health and Preventive Medicine, Yokohama City University of Medicine , Yokohama 236-0004, Japan