Institution: | 1. Department of Preventive and Restorative Dental Sciences, University of California San Francisco School of Dentistry, San Francisco, CA, USA;2. Division of Epidemiology, School of Public Health, University of California Berkeley, Berkeley, CA, USA;3. Department of Pediatric Dentistry, Universidade Luterana do Brasil, Canoas, Brazil;4. Graduate Program in Health Sciences, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Brazil |