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Riggs T, Walts A, Perry N, Bickle L, Lynch JN, Myers A, Flynn J, Linderman JJ, Miller MJ, Kirschner DE.Riggs T, et al.J Theor Biol. 2008 Feb 21;250(4):732-51. doi: 10.1016/j.jtbi.2007.10.015. Epub 2007 Oct 18.J Theor Biol. 2008.PMID: 18068193Free PMC article.