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Laxer, G., Rey, M. & Ritvo, E.R. Brief Report: A comparison of potentially pathologic factors in European children with autism, Down's syndrome, and multiple physical handicaps. J Autism Dev Disord 18, 309–313 (1988). https://doi.org/10.1007/BF02211955
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DOI: https://doi.org/10.1007/BF02211955