From the Centers for Disease Control and Prevention. Blood lead levels in young children--United States and selected states, 1996-1999.
D002675:Child, Preschool; D006306:Health Surveys; D006801:Humans; D007223:Infant; D007854:Lead / Q000097:blood*; D007855:Lead Poisoning / Q000097:blood / Q000453:epidemiology*; D011159:Population Surveillance; D015995:Prevalence; D014481:United States / Q000453:epidemiology
D007854:Lead