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Croen, L. A., Grether, J. K., Hoogstrate, J., & Selvin, S. (2002). The changing prevalence of autism in California. Journal of Autism and Developmental Disorders, 32, 207–215.
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Croen, L.A., Grether, J.K. Response: A Response to Blaxill, Baskin, and Spitzer on Croen et al. (2002), “The Changing Prevalence of Autism in California”. J Autism Dev Disord 33, 227–229 (2003). https://doi.org/10.1023/A:1022964132203