Child care and child health: use of population surveys.
National Institute of Child Health and Human Development, Bethesda, MD.
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Cain
D002648:Child; D002654:Child Care / Q000639:trends*; D002656:Child Day Care Centers / Q000639:trends*; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D011159:Population Surveillance