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Thirty-day risk-standardized mortality rates (RSMRs) for acute myocardial infarction (AMI) vary widely across U.S. hospitals (range, 11%–25%); about 6% of this variation is explained by the use of aspirin, β-blockers, and rapid reperfusion therapy. To identify hospital strategies associated with lower 30-day RSMRs, researchers performed a cross-sectional survey of 537 hospitals that publicly reported AMI data between 2005 and 2008. The survey encompassed problem-solving and learning culture (i.e., “clinicians are encouraged to creatively solve problems related to AMI care processes”), hospital practices and protocols (i.e., presence of quality improvement teams), communication and coordination (i.e., hospital was part of a regional collabor…