title: A quantitative method for determining the effects of opiates on fetal rats in utero.
mesh_terms: D000818:Animals; D005260:Female; D005333:Fetus / Q000187:drug effects* / Q000502:physiology; D009020:Morphine / Q000494:pharmacology; D009068:Movement / Q000187:drug effects; D009270:Naloxone / Q000494:pharmacology; D009294:Narcotics / Q000494:pharmacology*; D011247:Pregnancy; D051381:Rats; D012018:Reflex / Q000187:drug effects; D013997:Time Factors
chemical_list: D009294:Narcotics; D009270:Naloxone; D009020:Morphine