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Elliott TA, Gregory TR.Elliott TA, et al. Among authors: gregory tr.Philos Trans R Soc Lond B Biol Sci. 2015 Sep 26;370(1678):20140331. doi: 10.1098/rstb.2014.0331.Philos Trans R Soc Lond B Biol Sci. 2015.PMID: 26323762Free PMC article.
Smith JD, Gregory TR.Smith JD, et al. Among authors: gregory tr.Biol Lett. 2009 Jun 23;5(3):347-51. doi: 10.1098/rsbl.2009.0016. Epub 2009 Mar 4.Biol Lett. 2009.PMID: 19324635Free PMC article.