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. 2020 Feb 21;8(3):E326–E337. doi: 10.1055/a-1068-9153

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This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives License, which permits unrestricted reproduction and distribution, for non-commercial purposes only; and use and reproduction, but not distribution, of adapted material for non-commercial purposes only, provided the original work is properly cited.

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Fig. 1b — Decision tree for the indication, occurrence and types of reinterventions in case of cannulation failure at the ERCP investigation. In case of failure all alternative options can be chosen as the next step in the model . In b is depicted the clinical outcomes as defined and implemented in the model. ERCP stands for Endoscopic Retrograde Cholangio Pacreaticography and PTC for Percutaneous Transhepatic Cholangiography.