A growth spurt in children's health laws.
Schmidt
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CW
D002648:Child; D002669:Child Welfare / Q000331:legislation & jurisprudence*; D002675:Child, Preschool; D003625:Data Collection; D004782:Environmental Health / Q000331:legislation & jurisprudence*; D006291:Health Policy / Q000331:legislation & jurisprudence*; D006801:Humans; D011050:Policy Making; D012107:Research Design; D014481:United States