Proceedings: Morphine analgesia-its main site of action?
D000818:Animals; D001665:Binding Sites; D001933:Brain Stem / Q000187:drug effects* / Q000503:physiopathology; D002415:Cats; D009020:Morphine / Q000494:pharmacology*; D010146:Pain / Q000503:physiopathology; D011817:Rabbits
D009020:Morphine