1. Department of Applied Life Science; The Graduate School; Yonsei University; Seoul South Korea
2. Department of Oral Biology; Yonsei University College of Dentistry; Seoul South Korea
3. BK21 PLUS Project; Yonsei University College of Dentistry; Seoul South Korea
4. Department of Periodontology; Research Institute for Periodontal Regeneration; Yonsei University College of Dentistry; Seoul South Korea
5. Oral Cancer Research Institute; Yonsei University College of Dentistry; Seoul South Korea