More About A. Diva's Fuck'n Awesome Neurology and Gestation Post
In response to UnderH20frog's comment below:
I don't think Autism Diva meant that all autistic children become autistic at that gestational point, but that some of them may.
Also, if a mother (of genetically susceptible children) consistently harbors sufficient levels of chemicals/metals in her body to tip the balance, then the environmental insult theory could indeed support three autistic children within the same family.
I personally am waiting for the day when autism gets divided into its formal subtypes: Genetic, Genetic/Environmental, Dietary, etc. I am tired of living in idiopathy.