Difficult biliary cannulation! Pancreatic guide−wire placement (PGP) is one of the tricks available to facilitate deep biliary can− nulation (the pancreatic guide wire straightens the bile duct and prevents repeat pancreatic can− Nguyen−Tang T, Dumonceau J−M. DDW highlights: ERCP topics ¼ Endoscopy 2008; 40: 855 ± 861
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