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Mitchell SE, Read AF.Mitchell SE, et al. Among authors: read af.Proc Biol Sci. 2005 Dec 22;272(1581):2601-7. doi: 10.1098/rspb.2005.3253.Proc Biol Sci. 2005.PMID: 16321782Free PMC article.
Mideo N, Nelson WA, Reece SE, Bell AS, Read AF, Day T.Mideo N, et al. Among authors: read af.Evolution. 2011 Nov;65(11):3298-310. doi: 10.1111/j.1558-5646.2011.01382.x. Epub 2011 Jul 21.Evolution. 2011.PMID: 22023593Free PMC article.