Letter: Central nervous system congenital malformations produced by narcotic analgesics.
D000014:Abnormalities, Drug-Induced / Q000209:etiology*; D000701:Analgesics, Opioid / Q000008:administration & dosage / Q000009:adverse effects*; D000818:Animals; D002490:Central Nervous System / Q000002:abnormalities*; D005260:Female; D006801:Humans; D011247:Pregnancy
D000701:Analgesics, Opioid