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Zu Y, Yang Z, Perlman AL.Zu Y, et al. Among authors: perlman al.J Speech Lang Hear Res. 2011 Jun;54(3):813-20. doi: 10.1044/1092-4388(2010/10-0077). Epub 2010 Nov 24.J Speech Lang Hear Res. 2011.PMID: 21106700