1. Department of Rheumatology/Clinical Immunology, Saitama Medical Center, Saitama Medical University,
Kawagoe, Saitama, Japan
2. Division of Rheumatology, Department of Internal Medicine, School of Medicine, Keio University,
Shinjuku-ku, Tokyo, Japan
3. Santen Pharmaceutical Co., Ltd.
Kita-ku, Osaka,
Japan
4. Division of Rheumatology, Department of Internal Medicine, School of Medicine, Toho University,
Meguro-ku, Tokyo, Japan