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Horne AW, Phillips JA 3rd, Kane N, Lourenco PC, McDonald SE, Williams AR, Simon C, Dey SK, Critchley HO.Horne AW, et al. Among authors: critchley ho.PLoS One. 2008;3(12):e3969. doi: 10.1371/journal.pone.0003969. Epub 2008 Dec 18.PLoS One. 2008.PMID: 19093002Free PMC article.