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Auer SK, Salin K, Anderson GJ, Metcalfe NB.Auer SK, et al. Among authors: metcalfe nb.Biol Lett. 2015 Nov;11(11):20150793. doi: 10.1098/rsbl.2015.0793.Biol Lett. 2015.PMID: 26556902Free PMC article.