Fig. 2From: Posterior pericardiotomy to prevent new-onset atrial fibrillation after coronary artery bypass grafting: a systematic review and meta-analysis of 10 randomized controlled trialsQuality assessments according risk of bias. a Risk of bias summary: judgments about each risk of bias item for each included study. b Risk of bias graph: judgments about each risk of bias item presented as percentages across all included studiesBack to article page