Tolerance to the effects of morphine on intestinal motility of unanesthetized dogs.
D000818:Animals; D004285:Dogs; D004305:Dose-Response Relationship, Drug; D004361:Drug Tolerance; D005769:Gastrointestinal Motility / Q000187:drug effects*; D006801:Humans; D009020:Morphine / Q000494:pharmacology*; D013375:Substance Withdrawal Syndrome
D009020:Morphine