title: Health maintenance organisations drop Medicare beneficiaries.
authors.forename: F
authors.initials: F
authors.lastname: Charatan
mesh_terms: D000368:Aged; D017048:Health Care Costs; D006279:Health Maintenance Organizations / Q000191:economics* / Q000639:trends; D006801:Humans; D015442:Medicare Assignment / Q000191:economics / Q000639:trends*; D014481:United States