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. 2016 Aug 24;3(2):e000491. doi: 10.1136/openhrt-2016-000491

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Kaplan-Meier curve of freedom from event. Each step in the curve indicates that a recurrent spontaneous coronary artery dissection (SCAD) or a non-SCAD coronary event has occurred in the cohort. The censored data points represent patients who have been lost to follow-up but had not experienced an additional event when last seen.