[eitally]

On the other hand, the SEED autism study is still going strong, currently in phase two after the first five year phase ended in 2012.

http://www.cdc.gov/ncbddd/autism/seed.html

I only know about it, though, because my wife & I participated in it with our daughter (who is not on the autism spectrum): https://ncseed.org/public/seed2.php

It seems the organizers are contacting the parents of every child born in the 10 eligible counties of North Carolina, so they must be seeking quite a large number of participants (and this is only one of the five states).