The influence of morphine and pethidine in combination with levallorphan on biliary duct pressure after cholecystectomy.
D001652:Bile Ducts; D002763:Cholecystectomy; D006801:Humans; D007977:Levallorphan; D008614:Meperidine / Q000494:pharmacology*; D009020:Morphine / Q000037:antagonists & inhibitors* / Q000494:pharmacology*; D011312:Pressure
D007977:Levallorphan; D009020:Morphine; D008614:Meperidine
MEPERIDINE/pharmacology; MORPHINE/antagonists; MORPHINE/pharmacology