Fig. 2From: Efficacy and safety of fibrin sealant application in patients undergoing thyroidectomy: a systematic review and meta-analysisRisk of bias in the included randomized controlled trials (RCTs) on FS application in patients undergoing thyroidectomy. The Cochrane Collaboration risk-of-bias evaluation technique was used to examine the probability of bias in the seven included RCTs using seven criteria [22]. Green, low risk of bias; yellow, uncertainty; red, high risk of biasBack to article page