1. IOM (Institute of Medicine) and NRC (National Research Council). Improving access to oral health care for vulnerable and underserved populations. Washington, DC: The National Academies Press, 25, 2011.
2. California Department of Education, Student Poverty FRPM Data, 2014-2015. www.cde.ca.gov/ds/sd/sd/filessp.asp.
3. U.S. Census Bureau: State and County Quick Facts. Data derived from population estimates, American community survey, census of population and housing, county business patterns, economic census, survey of business owners, building permits, census of governments. Last revised: Wednesday, Oct. 14, 2015.
4. Prevention-Centered Caries Management Strategies During Critical Periods in Early Childhood