1. Department of Preventive and Restorative Dental Sciences; Center for the Health Professions; School of Dentistry University of California; San Francisco
2. Department of Oral and Maxillofacial Surgery; School of Dentistry, University of California, San Francisco, and Professor of Biology, San Francisco State University
3. School of Dentistry, University of California; Los Angeles
4. Department of Preventive and Restorative Dental Sciences; School of Dentistry, University of California; San Francisco
5. Department of Preventive and Restorative Dental Sciences; Center for the Health Professions; School of Dentistry, University of California; San Francisco