1. Division of Periodontology; Department of Oral Medicine, Infection, and Immunity; Harvard School of Dental Medicine; Boston Massachusetts
2. Department of Periodontology; Faculty of Dentistry; Chulalongkorn University; Bangkok Thailand
3. Department of Immunology and Infectious Diseases; The Forsyth Institute; Cambridge Massachusetts
4. Department of Applied Oral Sciences; The Forsyth Institute; Cambridge Massachusetts
5. Harvard Stem Cell Institute; Boston Massachusetts