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Continue to ChatI think that if I could do any sort of research of autism that I wanted to do, at this point I would take a sample of classic, early infantile autism persons and compare them with what I call "classic late onset autism", individuals. I think we will find that the cause of those youngsters with autism who have autism from birth is probably different than those who have late onset autism. - Darold Treffert from https://whatsmyquote.com/quote/i-think-that-if-i-could-do-any-sort-of-research-of-autism-that-i-wanted-to-do-at-this-point-i-would-take-a