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Plowman E, Hentz B, Ellis C Jr.Plowman E, et al. Among authors: ellis c jr.J Eval Clin Pract. 2012 Jun;18(3):689-94. doi: 10.1111/j.1365-2753.2011.01650.x. Epub 2011 Mar 13.J Eval Clin Pract. 2012.PMID: 21395923Review.