Citation:
Cote, G. A., Hovis, C. E., Edmundowicz, S. A., Jonnalagadda, S. S., Mullady, D., & Azar, R. R. (2010). Predicting Difficult Bile Duct Cannulation: Accuracy of Endoscopic Visualization of the Papilla to Predict Cannulation Difficulty. Gastrointestinal Endoscopy, 71(5), AB164.