Oct 28, 2012

Autism: Environmental factors often neglected in search for a cause.

In 1990, 6 out of 10,000 children were diagnosed with autism by age 5 in California. In 2001, it was 42 in 10,000 - a 600 per cent spike. For the past 10 years, Irva Hertz-Picciotto has tried to discover what environmental factors could account for that staggering increase.

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