title: The limitations of cost projections.
authors.forename: H J
authors.initials: HJ
authors.lastname: Aaron
mesh_terms: D000206:Actuarial Analysis; D005544:Forecasting; D017048:Health Care Costs / Q000639:trends*; D006801:Humans; D006278:Medicare / Q000191:economics* / Q000639:trends; D014481:United States