title: 6.4 million at risk: protecting the poorest Americans during the Medicare drug transition.
mesh_terms: D000368:Aged; D014487:Centers for Medicare and Medicaid Services, U.S.; D004608:Eligibility Determination; D006297:Health Services Accessibility / Q000191:economics*; D006801:Humans; D007349:Insurance, Health, Reimbursement; D007356:Insurance, Pharmaceutical Services / Q000331:legislation & jurisprudence*; D008484:Medicaid / Q000331:legislation & jurisprudence*; D006278:Medicare / Q000331:legislation & jurisprudence*; D011203:Poverty; D018570:Risk Assessment; D012943:Social Security; D013221:State Health Plans; D014481:United States