[Exposure of children to lead: lead contents in umbilical cord blood].
D005260:Female; D005312:Fetal Blood / Q000032:analysis*; D006801:Humans; D007231:Infant, Newborn; D007564:Japan; D007854:Lead / Q000097:blood*; D008297:Male; D008722:Methods; D011247:Pregnancy
D007854:Lead