Comparative Efficacy of the Picture Exchange Communication System (PECS) versus a Speech-Generating Device: Effects on Social-communicative Skills and Speech Development

Author: Boesch Miriam C.   Wendt Oliver   Subramanian Anu   Hsu Ning  

Publisher: Informa Healthcare

ISSN: 0743-4618

Source: Augmentative & Alternative Communication, Vol.29, Iss.3, 2013-09, pp. : 197-209

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