Lead as a cause of mental retardation.
D002648:Child; D002675:Child, Preschool; D006801:Humans; D007231:Infant, Newborn; D008607:Intellectual Disability / Q000209:etiology*; D007854:Lead / Q000032:analysis*; D007855:Lead Poisoning / Q000150:complications*; D012606:Scotland; D014881:Water Supply / Q000032:analysis*
D007854:Lead