1. Department of Oral and Maxillofacial Surgery, Section of Dentistry, Seoul National University Bundang Hospital
2. R&D Institute, Korea Tooth Bank
3. Division of Oral and Maxillofacial Surgery, School of Dentistry, Health Sciences University of Hokkaido
4. Division of Oral and Maxillofacial Surgery, Department of Dentistry, Korea University Anam Hospital
5. Department of Oral and Maxillofacial Surgery, Medical Center, Ajou University