Endoscopic retrogade cholangiopancreatography ... 30 min before ERCP or by a single intravenous injection at the time of cannulation of the papilla and compared it with a placebo.

assists with endoscopic retrograde cholangiopancreatography cannulation (which uses an endoscope and X-rays to examine and treat the liver, gallbladder, pancreas and bile ducts) and aids in ...