title: Commentary.
authors.affiliation: Agency for Healthcare Research and Quality, Rockville, Maryland, USA.
authors.forename: Carolyn M
authors.initials: CM
authors.lastname: Clancy
mesh_terms: D006760:Hospitalization / Q000191:economics / Q000706:statistics & numerical data*; D006801:Humans; D011785:Quality Assurance, Health Care; D012449:Safety; D014481:United States; D016270:United States Agency for Healthcare Research and Quality / Q000191:economics / Q000458:organization & administration*