title: Amniotic fluid methadone in women maintained on methadone.
mesh_terms: D000328:Adult; D000653:Amniotic Fluid / Q000032:analysis*; D005260:Female; D006556:Heroin Dependence / Q000188:drug therapy*; D006801:Humans; D008691:Methadone / Q000032:analysis* / Q000627:therapeutic use; D011247:Pregnancy; D013375:Substance Withdrawal Syndrome / Q000517:prevention & control; D013997:Time Factors
chemical_list: D008691:Methadone