1. Division of Rheumatology and Allergology, Department of Internal Medicine, St. Marianna University School of Medicine, Kawasaki, Japan,
2. Department of Clinical Nursing, School of Health Sciences, University of Occupational and Environmental Health, Kitakyushu, Japan,
3. Division of Rheumatology and Clinical Immunology, Department of Medicine, University of Florida, Gainesville, FL, USA, and
4. Division of Rheumatology, Department of Internal Medicine, Yokohama City Seibu Hospital, St. Marianna University School of Medicine, Yokohama, Japan