title: Medicare beneficiaries and prescription drug coverage: gaps and barriers.
authors.forename: D
authors.initials: D
authors.lastname: Gross
authors.forename: N
authors.initials: N
authors.lastname: Brangan
mesh_terms: D005382:Financing, Personal; D006264:Health Benefit Plans, Employee; D006304:Health Status; D006801:Humans; D019458:Insurance Coverage; D007356:Insurance, Pharmaceutical Services; D006278:Medicare; D012959:Socioeconomic Factors; D014481:United States