Sequential dilation of the tract under fluoroscopic guidance by first passing a 4.5 or 5 Fr ERCP cannula over the guidewire, followed by further dilatation using a 6 or 8 mm over–the–wire ...
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.
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