Blood-lead in mentally retarded children.
D002648:Child; D006801:Humans; D008607:Intellectual Disability / Q000097:blood* / Q000139:chemically induced; D007854:Lead / Q000009:adverse effects / Q000097:blood*; D014873:Water Pollutants; D014874:Water Pollutants, Chemical
D014873:Water Pollutants; D014874:Water Pollutants, Chemical; D007854:Lead