1. Section of Periodontics UCLA School of Dentistry Los Angeles California
2. Department of Orofacial Sciences School of Dentistry University of California San Francisco San Francisco California
3. Periodontics and Oral Medicine University of Michigan School of Dentistry Ann Arbor Michigan
4. Department of Cariology, Restorative Sciences, and Endodontics School of Dentistry University of Michigan Ann Arbor Michigan
5. The Forsyth Institute Cambridge Massachusetts
6. Department of Oral Medicine Infection & Immunity Harvard School of Dental Medicine Boston Massachusetts
7. Department of Biologic and Materials Sciences & Prosthodontics University of Michigan School of Dentistry Ann Arbor Michigan
8. Department of Epidemiology School of Public Health University of Michigan Ann Arbor Michigan
9. Department of Periodontics & Oral Medicine School of Dentistry University of Michigan Ann Arbor Michigan