The lead effect?
D000293:Adolescent; D000328:Adult; D000374:Aggression / Q000187:drug effects*; D002648:Child; D002653:Child Behavior Disorders / Q000209:etiology*; D002669:Child Welfare; D002675:Child, Preschool; D003072:Cognition Disorders / Q000209:etiology; D003415:Crime / Q000639:trends*; D017048:Health Care Costs; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007360:Intelligence / Q000187:drug effects; D007854:Lead / Q000009:adverse effects*; D007855:Lead Poisoning / Q000150:complications* / Q000191:economics; D012917:Social Adjustment
D007854:Lead