A randomized controlled trial of endoscopic steroid injection for prophylaxis of esophageal stenoses after extensive endoscopic submucosal dissection.

BMC Gastroenterol · 2015 · PMC4308850 · PMID 25609176

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did not reach statistical significanceno p-value reported

A surrogate primary endpoint, the number of dilatation sessions required, was subsequently included in the analysis because the primary endpoint did not reach statistical significance.

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