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Cited by in CrossRef
For: Berry R, Han JY, Tabibian JH. Difficult biliary cannulation: Historical perspective, practical updates, and guide for the endoscopist. World J Gastrointest Endosc 2019; 11(1): 5-21 [PMID: 30705728 DOI: 10.4253/wjge.v11.i1.5]
URL: https://www.wjgnet.com/1007-9327/full/v11/i1/5.htm
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