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Receiver operating characteristic (ROC) curves for the capacity of R‐wave heterogeneity (RWH) and QRS complex duration to predict mechanical super‐response to cardiac resynchronization therapy in patients without left bundle branch block (non‐LBBB). RWH in all lead sets showed significance in non‐LBBB patients. The p value is based on the difference between the areas under the curve (AUCs) and an AUC of 0.5 (random). Reprinted with permission from Bortolotto et al. (2020)
