Journal of Autism and Developmental Disorders (2009) - Comment
pubmed: 18592365  doi: 10.1007/s10803-008-0608-0  issn: 0162-3257  issn: 1573-3432 

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Brandon Keehn, Laurie A. Brenner, Aurora I. Ramos, Alan J. Lincoln, Sandra P. Marshall, Ralph-Axel Müller