The effect of n-allylnormorphine on the choledochal sphincter action.
D001652:Bile Ducts; D003135:Common Bile Duct / Q000187:drug effects*; D006801:Humans; D009269:Nalorphine / Q000494:pharmacology*
D009269:Nalorphine
BILE DUCT, COMMON/effect of drugs on; NALORPHINE/effects