1. Laboratory for Immunoregulation and Tissue Engineering Ostrow School of Dentistry University of Southern California Los Angeles CA USA
2. Laboratory of Tissue Regeneration and Immunology and Department of Periodontics Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction Capital Medical University School of Stomatology Beijing China
3. Department of Oral and Maxillofacial Surgery Xiangya Hospital Central South University Changsha China
4. Department of Periodontology School of Dentistry Wonkwang University Iksan Jeonbuk South Korea