Lead poisoning.
D002493:Central Nervous System Diseases / Q000139:chemically induced; D002648:Child; D004912:Erythrocytes / Q000032:analysis; D006801:Humans; D007854:Lead / Q000097:blood; D007855:Lead Poisoning / Q000097:blood / Q000188:drug therapy / Q000453:epidemiology / Q000209:etiology; D008403:Mass Screening; D008404:Massachusetts; D010150:Paint / Q000506:poisoning; D011524:Protoporphyrins / Q000097:blood; D012961:Sociology; D001335:Vehicle Emissions / Q000009:adverse effects
D011524:Protoporphyrins; D001335:Vehicle Emissions; D007854:Lead