Letter: Fetal response to drug withdrawal.
D005260:Female; D005316:Fetal Distress / Q000209:etiology*; D005333:Fetus / Q000502:physiology; D006801:Humans; D008431:Maternal-Fetal Exchange; D011247:Pregnancy; D013375:Substance Withdrawal Syndrome / Q000150:complications* / Q000503:physiopathology