Efficacy and Safety of Transcutaneous Electrical Acupoint Stimulation (TEAS) for Postoperative Pain in Laparoscopy: A Systematic Review and Meta-Analysis of Randomized Controlled Trials

Figure 2

Risk of bias from included studies. (a) Risk of bias summary. Review authors’ judgments about each risk of bias item for each included study. (b) Risk of bias graph. Review authors’ judgments about each risk of bias item presented as percentages across all included studies.

(a)

(b)