title: Medicare spends billions on "low value" services, US study finds.
authors.affiliation: Seattle.
authors.forename: Michael
authors.initials: M
authors.lastname: McCarthy
mesh_terms: D003362:Cost-Benefit Analysis; D006801:Humans; D019458:Insurance Coverage / Q000191:economics* / Q000458:organization & administration; D008403:Mass Screening / Q000191:economics* / Q000706:statistics & numerical data; D006278:Medicare / Q000191:economics; D014481:United States