1. Department of Preventive Dentistry, Tohoku University Hospital
2. Department of Thoracic Surgery, Fujita Health University School of Medicine
3. Division of Clinical Chemistry, Department of Medical Technology, Niigata University Graduate School of Health Sciences
4. Division of Oral Ecology and Biochemistry, Department of Oral Biology, Tohoku University Graduate School of Dentistry
5. Division of Preventive Dentistry, Department of Oral Health and Development Sciences, Tohoku University Graduate School of Dentistry