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Jeyasingh PD, Weider LJ, Sterner RW.Jeyasingh PD, et al.Ecol Lett. 2009 Nov;12(11):1229-37. doi: 10.1111/j.1461-0248.2009.01368.x. Epub 2009 Aug 31.Ecol Lett. 2009.PMID: 19719840