title: Preparing for managed competition. Utilization of ophthalmologic procedures by elderly Medicare beneficiaries.
authors.forename: J C
authors.initials: JC
authors.lastname: Javitt
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D016536:Competitive Medical Plans; D006299:Health Services for the Aged / Q000706:statistics & numerical data*; D006801:Humans; D008329:Managed Care Programs; D006278:Medicare; D009885:Ophthalmology / Q000458:organization & administration*; D014481:United States