One-step transfistula large versus conventional balloon dilation following precut fistulotomy in difficult biliary cannulation for the removal of biliary stones: A multicenter retrospective study

Background and Aim After selective biliary access following precut fistulotomy in difficult biliary cannulations (DBC), there are several methods of completely opening the remaining papillary roof for the removal of biliary stones. We evaluated the efficacy of one‐step transfistula balloon dilation...

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