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Guzman M, Rubin A, Cox P, Landini F, Jackson-Menaldi C.Guzman M, et al.J Voice. 2014 Mar;28(2):216-25. doi: 10.1016/j.jvoice.2013.09.003. Epub 2013 Dec 4.J Voice. 2014.PMID: 24315659