1. Department of Applied Oral Sciences, ADA Forsyth Institute, Cambridge, MA, USA
2. Center for Oral Health Research, College of Dentistry, University of Kentucky, Lexington, KY, USA
3. Division of Comprehensive Oral Health, Adams School of Dentistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
4. Division of Periodontology, São Paulo State University – School of Dentistry, São José dos Campos, Brazil
5. Department of Oral Medicine, Infection, and Immunity, Harvard University School of Dental Medicine, Boston, MA, USA