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Schillo BA, Mowery A, Greenseid LO, Luxenberg MG, Zieffler A, Christenson M, Boyle RG.Schillo BA, et al. Among authors: boyle rg.BMC Public Health. 2011 Dec 16;11:939. doi: 10.1186/1471-2458-11-939.BMC Public Health. 2011.PMID: 22177237Free PMC article.