1. Department of Epidemiology and Health Promotion; College of Dentistry; New York University
2. Schools of Dentistry and Medicine; University of California; San Francisco
3. Harvard School of Dental Medicine
4. Henry M. Goldman School of Dental Medicine; Boston University
5. Department of Periodontology and Implant Dentistry; College of Dentistry; New York University
6. The Health Bureau Ltd
7. Department of Preventive and Restorative Dental Sciences; School of Dentistry; University of California; San Francisco