Litwok, Daniel, Douglas Walton, Rebecca Jackson, and Laura R. Peck (2019). Health Profession Opportunity Grants (HPOG 1.0) impact study: Three-year impacts report appendices, OPRE Report #2019-114, Washington, DC: Office of Planning, Research, and Evaluation, Administration for Children and Families, U.S. Department of Health and Human Services. Available at https://www.acf.hhs.gov/sites/default/files/documents/opre/hpog_three_year_impacts_nov_2019_0_0.pdf