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Brownson RC, Smith CA, Pratt M, Mack NE, Jackson-Thompson J, Dean CG, Dabney S, Wilkerson JC.Brownson RC, et al.Am J Public Health. 1996 Feb;86(2):206-13. doi: 10.2105/ajph.86.2.206.Am J Public Health. 1996.PMID: 8633737Free PMC article.