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Forest plot showed that steroid significantly reduced EBD sessions than control (MD, −4.33; 95% CI, −6.10 to −2.57), and both local injected (MD, −2.69; 95% CI, −4.12 to −1.26) and oral steroid (MD, −10.46; 95% CI, −17.83 to −3.08) were effective to reduce EBD sessions. CI = confidence interval, EBD = endoscopic balloon dilation, MD = mean difference, M–H = Mantel Haenszel.
