1. Department of Periodontology, Adams School of Dentistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
2. Curriculum in Oral and Craniofacial Biomedicine, Adams School of Dentistry, University of North Carolina at Chapel Hill, NC, USA
3. Curriculum in Biology, School of Medicine, Emory University, Atlanta, GA, USA
4. Department of Pediatric Dentistry, Adams School of Dentistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
5. Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
6. Curriculum in Doctor of Dental Surgery, Adams School of Dentistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA