1. Geographic disparities affect access to buprenorphine services for opioid use disorder Publication: [Washington, D.C.] : U.S. Department of Health and Human Services, Office of Inspector General, January 2020 Subject(s): Buprenorphine -- supply & distributionHealth Services AccessibilityMedically Underserved AreaOpiate Substitution TreatmentOpioid-Related Disorders -- drug therapyUnited StatesUnited States. Department of Health and Human ServicesUnited States. Substance Abuse and Mental Health Services Administration