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Forest plot comparing the effect of the use of BITA vs SITA on end of follow‐up (top) and 1‐year (bottom) mortality in PSM studies in the general population (12 studies; 34 019 patients). BITA indicates bilateral internal thoracic artery; CI, confidence interval; PSM, propensity‐score matched; SITA, single internal thoracic artery. Incident rate ratio (IRR) is used.
