title: Overuse of administrative data to measure underuse of care.
authors.forename: J
authors.initials: J
authors.lastname: Hsu
authors.forename: A
authors.initials: A
authors.lastname: Go
authors.forename: J
authors.initials: J
authors.lastname: Selby
mesh_terms: D000368:Aged; D006300:Health Services Misuse / Q000706:statistics & numerical data*; D006299:Health Services for the Aged / Q000706:statistics & numerical data*; D006801:Humans; D006278:Medicare / Q000706:statistics & numerical data*; D020380:Needs Assessment; D014481:United States