1. Department of Clinical Pathophysiology; Tsurumi University Dental Hospital; Yokohama Japan
2. Department of Geriatric Dentistry; Tsurumi University School of Dental Medicine; Yokohama Japan
3. Department of Oral and Maxillofacial Surgery; Tsurumi University School of Dental Medicine; Yokohama Japan
4. Department of Community Dentistry; Tsurumi University School of Dental Medicine; Yokohama Japan
5. Department of Oral Surgery; Kagoshima University Hospital; Kagoshima Japan
6. Department of Dental Anesthesiology; Tsurumi University School of Dental Medicine; Yokohama Japan
7. Department of Pathology; Tsurumi University School of Dental Medicine; Yokohama Japan
8. Department of Oral Microbiology; Tsurumi University School of Dental Medicine; Yokohama Japan