1. Editor-in-Chief of J Korean Assoc Oral Maxillofac Surg, Seongnam, Korea
2. Department of Oral and Maxillofacial Surgery, Section of Dentistry, Seoul National University Bundang Hospital, Seongnam, Korea
3. Department of Dentistry &Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Korea
4. Editorial Board of J Korean Assoc Oral Maxillofac Surg, Seongnam, Korea
5. Department of Oral and Maxillofacial Surgery, Section of Dentistry, Armed Forces Capital Hospital, Armed Forces Medical Command, Seongnam, Korea