https://www.selleckchem.com/pr....oducts/Cyclopamine.h
Deep cannulation of the common bile duct is essential in endoscopic retrograde cholangiopancreatography (ERCP). However, with the use of the usual techniques, it is not possible to cannulate in approximately 20% of the cases. Pre-cutting is an alternative that allows cannulation in difficult cases although its success is not guaranteed. Repeating the ERCP within three days of a failed pre-cut is an acceptable option. To determine if an ERCP done three days after a failed pre-cut papillotomy allows the bile duct to be cannulated with
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