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Increase in autism is due to changes in diagnosis, study claims

BMJ 2004; 328 doi: 10.1136/bmj.328.7436.364-b (Published 12 February 2004)
Cite this as: BMJ 2004;328:364.3

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  1. Vittal Katikireddi
  1. BMJ

    The incidence of autism is increasing, but this is due to changes in diagnostic practice, a recent study has found.

    The study, published in December inPharmacotherapy ( 2003;23: 1524-30), set out to identify whether the number of diagnoses of autism had progressively increased over the last decade and, if it had, what environmental exposures were related to the increase.

    “We documented that the number of …

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