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Zeng Y, Ebong EE, Fu BM, Tarbell JM.Zeng Y, et al. Among authors: ebong ee.PLoS One. 2012;7(8):e43168. doi: 10.1371/journal.pone.0043168. Epub 2012 Aug 14.PLoS One. 2012.PMID: 22905223Free PMC article.