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Sanderson M, Coker AL, Roberts RE, Tortolero SR, Reininger BM.Sanderson M, et al.Prev Med. 2004 Aug;39(2):373-83. doi: 10.1016/j.ypmed.2004.01.034.Prev Med. 2004.PMID: 15226049
Reininger BM, Wang J, Fisher-Hoch SP, Boutte A, Vatcheva K, McCormick JB.Reininger BM, et al.BMC Public Health. 2015 Jun 19;15:564. doi: 10.1186/s12889-015-1850-y.BMC Public Health. 2015.PMID: 26088129Free PMC article.