title: Intelligence and lead toxins in rural children.
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007360:Intelligence / Q000187:drug effects*; D007855:Lead Poisoning / Q000523:psychology*; D008297:Male; D008396:Maryland; D012424:Rural Population