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. 2014 Jul 3;4(7):e005077. doi: 10.1136/bmjopen-2014-005077

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Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions

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Flow chart outlining selection of patients for the current study. For patients with more than one hospital admittance during the study, only the first admittance under a classifying diagnosis was included in the current study. In total, 1136 patients ≥30 and <75 years were excluded. These represent either patients with known CAD (stable angina, previous MI, prior diagnosis of ischaemic heart failure, stroke) or patients included with a previous admission in either the ACS or non-ACS group. ACS, acute coronary syndrome; CAD, coronary artery disease; CHAPS, Carlscrona Heart Attack Prognosis Study; MI, myocardial infarction; UA, unstable angina.