1. Division of Oral and Maxillofacial Surgery, Department of Science of Physical Functions, Kyushu Dental University
2. Division of Oral Pathology, Department of Health Promotion, Kyushu Dental University
3. Division of Pathology, The Cancer Institute, Department of Pathology, The Cancer Institute Hospital, Japanese Foundation for Cancer Research
4. Department of Oral and Maxillofacial Surgery, Tobata Kyoritsu Hospital