Lead questionnaire not always efficient.
Kazal
L A
LA
Bullock
P W
PW
D001130:Arizona / Q000453:epidemiology; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007198:Indians, North American; D007223:Infant; D007854:Lead / Q000097:blood*; D007855:Lead Poisoning / Q000208:ethnology / Q000517:prevention & control*; D008403:Mass Screening / Q000379:methods*; D011795:Surveys and Questionnaires
D007854:Lead