1. Department of Anatomy, Chonbuk National University Medical School, Jeonju, Korea.
2. Oral Health Science Center hrc8, Tokyo Dental College, Chiba, Japan.
3. Department of Anatomy, Tokyo Dental College, Chiba, Japan.
4. Maxillofacial Anatomy, Department of Maxillofacial Biology, Tokyo Medical and Dental University Graduate School, Tokyo, Japan.
5. Division of Internal Medicine, Iwamizawa Kojin-kai Hospital, Iwamizawa, Japan.
6. Department of Surgery, Chonbuk National University Medical School, Jeonju, Korea.