1. Prospective evaluation of pancreatic sphincterotomy as a precut technique for biliary cannulation 
Michel Kahaleh, Jeffrey Tokar, Tarun Mullick, Stephen J. Bickston, Paul Yeaton 
Clinical Gastroenterology and Hepatology 
Volume 2, Issue 11, Pages (November 2004)
DOI: /S (04)
Copyright © 2004 American Gastroenterological Association Terms and Conditions

2. Figure 1 Exposure of the bile duct orifice after PPS (arrow).
Clinical Gastroenterology and Hepatology 2004 2, DOI: ( /S (04) )
Copyright © 2004 American Gastroenterological Association Terms and Conditions

3. Figure 2 Exposure of the bile duct after PPS (arrow).
Clinical Gastroenterology and Hepatology 2004 2, DOI: ( /S (04) )
Copyright © 2004 American Gastroenterological Association Terms and Conditions

4. Figure 3 Cannulation of the bile duct by using a taper tip catheter.
Clinical Gastroenterology and Hepatology 2004 2, DOI: ( /S (04) )
Copyright © 2004 American Gastroenterological Association Terms and Conditions