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Needle-knife papillotomy and fistulotomy improved the treatment outcome of patients with difficult biliary cannulation

Crossref DOI link: https://doi.org/10.1007/s00464-016-4914-x

Published Online: 2016-04-29

Published Print: 2016-12

Update policy: https://doi.org/10.1007/springer_crossmark_policy

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