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. 2009 Mar 15;6(2):A52.

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Flow chart of how a final cohort was reached of 372 Washington State Medicaid patients who had a myocardial infarction in 2004 — Sample selection of 372 Washington State Medicaid or Medicare/Medicaid recipients who had a diagnosis of MI in 2004. Abbreviations: MI, myocardial infarction; ICD-9, International Classification of Diseases, Ninth Revision.