[Vitamin A in blood of pregnant women and their newborn infants in 2 socioeconomic groups].
D005260:Female; D005312:Fetal Blood / Q000032:analysis*; D006801:Humans; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000097:blood*; D011247:Pregnancy; D012959:Socioeconomic Factors; D014801:Vitamin A / Q000097:blood*; D014802:Vitamin A Deficiency / Q000097:blood*
D014801:Vitamin A
Vitamina A en sangre de embarazadas y sus recién nacidos de dos grupos socio económicos