1. Department and Research Institute for Dental Biomaterials and Bioengineering, Yonsei University College of Dentistry, Seoul, Korea.
2. BK21 PLUS Project for Interdisciplinary Oral Science Graduate Program, Yonsei University College of Dentistry, Seoul, Korea.
3. School of Stomatology, Taishan Medical University, Tai'an, Shandong, PR China.
4. Department of Orthodontics, The Institute of Craniofacial Deformity, Yonsei University College of Dentistry, Seoul, Korea.