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Cologgi DL, Lampa-Pastirk S, Speers AM, Kelly SD, Reguera G.Cologgi DL, et al. Among authors: reguera g.Proc Natl Acad Sci U S A. 2011 Sep 13;108(37):15248-52. doi: 10.1073/pnas.1108616108. Epub 2011 Sep 6.Proc Natl Acad Sci U S A. 2011.PMID: 21896750Free PMC article.