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Sensitivity and specificity of red flags: (A) Bar chart, (B) receiver‐operating characteristic curves, and (C) area under the curve (AUC). ECG, electrocardiogram; GLS, global longitudinal strain; IVS, interventricular septum; NT‐proBNP, N‐terminal pro‐B‐type natriuretic peptide; RAS, relative apical sparring; RASr, relative apical sparring ratio.
