Journal of Autism and Developmental Disorders (2005) - Comment
pubmed: 16177837  doi: 10.1007/s10803-005-0007-8  issn: 0162-3257  issn: 1573-3432 

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Richard P. Hastings, Hanna Kovshoff, Nicholas J. Ward, Francesca Degli Degli Espinosa, Tony Brown, Bob Remington