title: Physical dependence and tolerance development to sustained low concentrations of morphine in mice.
mesh_terms: D000818:Animals; D004343:Drug Implants; D004361:Drug Tolerance; D006801:Humans; D008297:Male; D051379:Mice; D009020:Morphine / Q000008:administration & dosage / Q000494:pharmacology*; D009021:Morphine Dependence / Q000209:etiology*; D009270:Naloxone / Q000494:pharmacology; D013239:Stereotyped Behavior / Q000187:drug effects; D013375:Substance Withdrawal Syndrome / Q000139:chemically induced
chemical_list: D004343:Drug Implants; D009270:Naloxone; D009020:Morphine