Copyright © American Speech-Language-Hearing Association From: Grammatical Morphology and the Role of Weak Syllables in the Speech of Italian-Speaking Children With Specific Language Impairment J Speech Lang Hear Res. 1998;41(6):1363-1374. doi:10.1044/jslhr.4106.1363 Legend: Mean percentages of use (and standard errors) of monosyllabic auxiliary forms and clitics in obligatory contexts by the children with SLI, the MLU controls, and the age controls. Date of download: 12/25/2017 Copyright © American Speech-Language-Hearing Association