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Talbot CF, Freeman HD, Williams LE, Brosnan SF.Talbot CF, et al.Biol Lett. 2011 Oct 23;7(5):680-2. doi: 10.1098/rsbl.2011.0211. Epub 2011 Apr 20.Biol Lett. 2011.PMID: 21508022Free PMC article.