Journal of Speech, Language, and Hearing Research, December 2013, Vol. 56:1837-1844. doi:10.1044/1092-4388(2013/12-0034)
Journal of Speech, Language, and Hearing Research, December 2012, Vol. 55:1822-1835. doi:10.1044/1092-4388(2012/11-0257)
Language, Speech, and Hearing Services in Schools, October 2012, Vol. 43:474-495. doi:10.1044/0161-1461(2012/11-0066)
American Journal of Speech-Language Pathology, August 2012, Vol. 21:197-206. doi:10.1044/1058-0360(2012/11-0008)
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