1. Department of Oral Surgery, Osaka Medical College
2. Department of Oral and Maxillofacial Surgery, Yamaguchi University Graduate School of Medicine
3. Department of Pediatric Dentistry, Kagoshima University Graduate School of Medical and Dental Sciences
4. Department of Oral Surgery, Institute of Biomedical Sciences, Tokushima University Graduate School
5. Department of Respiratory Medicine, Faculty of Medicine, Fukuoka University
6. Section of Oral and Maxillofacial Surgery, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University