1. Oral and Maxillofacial Surgery, Center Hospital, National Center for Global Health and Medicine, Tokyo, Japan.
2. Division of Special Dentistry and Oral Surgery, Japanese Red Cross Musashino Hospital, Musashino, Tokyo, Japan.
3. Department of Oral Surgery, School of Medicine, Toho University, Tokyo, Japan.
4. Maxillofacial Surgery,Graduate School, Tokyo Medical and Dental University, Tokyo, Japan.
5. Division of Research and Treatment for Oral and Maxillofacial Congenital Anomalies, School of Dentistry, Aichi Gakuin University, Nagoya, Aichi, Japan.