On grassroots activism and health policy: a case study.
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D000293:Adolescent; D000328:Adult; D002648:Child; D002669:Child Welfare; D003256:Community Participation; D005389:Firearms / Q000331:legislation & jurisprudence*; D006708:Homicide / Q000517:prevention & control*; D006801:Humans; D011640:Public Policy; D014481:United States