1. Department of Anatomy, Chonbuk National University Medical School, Jeonju, Korea.
2. Department of Anatomy, Institute of Bioscience and Medical Technology, University of Tampere, Tampere, Finland.
3. Maxillofacial Anatomy, Department of Maxillofacial Biology, Tokyo Medical and Dental University Graduate School, Tokyo, Japan.
4. Department of Anatomy, Sapporo Medical University School of Medicine, Sapporo, Japan.
5. Division of Internal Medicine, Iwamizawa Kojin-kai Hospital, Iwamizawa, Japan.
6. Department of Surgery and Research Institute of Clinical Medicine, Chonbuk National University Hospital, Chonbuk National University Medical School, Jeonju, Korea.