Peck, Laura R., Alan Werner, Eleanor Harvill, Daniel Litwok, Shawn Moulton, Alyssa Rulf Fountain, and Gretchen Locke (2018). Health Profession Opportunity Grants (HPOG 1.0) impact study interim report: Program implementation and short-term impacts, OPRE Report #2018-16a, 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/opre/hpog_interim_report_final_5_11_18_b508.pdf.