1. Department of Oral and Maxillofacial Implantology National Clinical Research Center of Stomatology Shanghai PerioImplant Innovation Center Ninth People's Hospital Shanghai Jiao Tong University School of Medicine Shanghai China
2. European Research Group on Periodontology Bern Switzerland
3. International Research Collaborative School of Human Anatomy and Biology Oral Health and Equity University of Western Australia Perth Australia
4. Division of Periodontics Section of Oral College of Dental Medicine Diagnostic and Rehabilitation Sciences Columbia University New York USA
5. Department of Dental Clinical Specialties and ETEP Research Group Faculty of Dentistry Complutense University of Madrid Madrid Spain