1. Department of Community Medicine, Nagasaki University Graduate School of Medical Sciences, Nagasaki, Japan
2. Department of Immunology and Rheumatology, Nagasaki University Graduate School of Medical Sciences, Nagasaki, Japan
3. Department of Island and Community Medicine, Nagasaki University Graduate School of Medical Sciences, Nagasaki, Japan
4. Department of General Medicine, Nagasaki University Hospital, Nagasaki, Japan