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Osborn KJ, Madin LP, Rouse GW.Osborn KJ, et al.Biol Lett. 2011 Jun 23;7(3):449-53. doi: 10.1098/rsbl.2010.0923. Epub 2010 Nov 24.Biol Lett. 2011.PMID: 21106571Free PMC article.