Comparative Analgesic Efficacies of Ropivacaine and Bupivacaine for Postoperative Rectus Sheath Block in Paediatric Abdominal Surgery: A Meta-Analysis of Randomized Controlled Trial and Retrospective Cohort Studies

Figure 2

Evaluation summary of bias risk items for each included study. The green, red, and yellow circles represent low, high, and unclear risk of bias, respectively.