1. Department of Immunology and Rheumatology, Unit of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Japan
2. Department of Hematology, Atomic Bomb Disease and Hibakusha Medicine Unit, Atomic Bomb Disease Institute, Nagasaki University, Japan
3. Department of Endocrinology and Metabolism, Unit of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Japan
4. Department of Otolaryngology, Nagasaki Harbor Medical Center, Japan
5. Department of Pathology, Nagasaki Harbor Medical Center, Japan