Conditional autonomic responses induced in dogs by atropine and morphine.
D000818:Animals; D001285:Atropine / Q000494:pharmacology*; D003213:Conditioning, Psychological / Q000187:drug effects*; D004285:Dogs; D005750:Gastric Juice / Q000378:metabolism; D006339:Heart Rate / Q000187:drug effects; D009020:Morphine / Q000494:pharmacology*; D010919:Placebos; D012472:Salivation / Q000187:drug effects; D012965:Sodium Chloride / Q000494:pharmacology
D010919:Placebos; D012965:Sodium Chloride; D009020:Morphine; D001285:Atropine