What does a decline in child pedestrian injury rates mean?
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D000063:Accidents, Traffic / Q000706:statistics & numerical data / Q000639:trends*; D000293:Adolescent; D002648:Child; D006801:Humans; D014481:United States / Q000453:epidemiology; D014947:Wounds and Injuries / Q000453:epidemiology / Q000517:prevention & control*