[Improved control of HIV transmission from mother to child].
D005260:Female; D015658:HIV Infections / Q000517:prevention & control* / Q000635:transmission; D006801:Humans; D007231:Infant, Newborn; D018445:Infectious Disease Transmission, Vertical / Q000517:prevention & control*; D011247:Pregnancy; D012307:Risk Factors; D015215:Zidovudine / Q000008:administration & dosage*
D015215:Zidovudine