title: Reactions of morphine-dependent rats to changes in theri usual daily dose [proceedings].
mesh_terms: D000818:Animals; D001522:Behavior, Animal / Q000187:drug effects*; D004305:Dose-Response Relationship, Drug; D006801:Humans; D008297:Male; D009020:Morphine / Q000008:administration & dosage*; D009021:Morphine Dependence / Q000503:physiopathology*; D051381:Rats
chemical_list: D009020:Morphine