1. Department of Periodontology, Chonbuk National University School of Dentistry, Jeonju, Korea.
2. Division in Anatomy and Developmental Biology, Department of Oral Biology, BK21 PLUS Project, Human Identification Research Center, Yonsei University College of Dentistry, Seoul, Korea.
3. Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital, Jeonju, Korea.