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Forrester JE, Wang XD, Knox TA, Borek CG, Tang AM, Johnson EJ.Forrester JE, et al. Among authors: tang am.J Public Health Policy. 2009 Sep;30(3):285-99. doi: 10.1057/jphp.2009.20.J Public Health Policy. 2009.PMID: 19806070Free PMC article.