1. Department of Immunology and Rheumatology, Unit of Translational Medicine, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan,
2. Department of Rheumatology, Sasebo Chuo Hospital, Sasebo, Japan,
3. Department of Community Medicine, and
4. Department Rehabilitation Sciences, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan