1. Department of Periodontology Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry Seoul South Korea
2. Innovation Research and Support Center for Dental Science Yonsei University Dental Hospital Seoul South Korea
3. Division in Anatomy and Developmental Biology, Department of Oral Biology Human Identification Research Institute, BK21 FOUR Project, Yonsei University College of Dentistry Seoul South Korea