1. Division of Clinical Immunology, Major of Advanced Biomedical Applications, Graduate School of Comprehensive Human Science, University of Tsukuba
2. Department of Internal Medicine, Takikawa Municipal Hospital
3. General Dentistry and Clinical Education Unit, Niigata University Medical and Dental Hospital
4. Division of Periodontology, Department of Oral Biological Science, Graduate School of Medical and Dental Sciences, Niigata University