1. Department of Periodontology Research Institute for Periodontal Regeneration Yonsei University College of Dentistry Seoul Korea
2. Department of Oral Medicine, Infection, and Immunity Harvard School of Dental Medicine Boston MA USA
3. Key Laboratory of Oral Medicine Guangzhou Institute of Oral Disease Affiliated Stomatology Hospital of Guangzhou Medical University Guangzhou China
4. Innovation Research and Support Center for Dental Science Yonsei University Dental Hospital Seoul Korea