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Kelder SH, Springer AS, Barroso CS, Smith CL, Sanchez E, Ranjit N, Hoelscher DM.Kelder SH, et al. Among authors: hoelscher dm.J Public Health Policy. 2009;30 Suppl 1(Suppl 1):S221-47. doi: 10.1057/jphp.2008.64.J Public Health Policy. 2009.PMID: 19190576Free PMC article.