Wouldn't that be "???"% of autistics are undiagnosed? Because ... they're undiagnosed?
The 90% is mentioned very commonly.
In Uk they made studies about this: https://www.kcl.ac.uk/news/up-to-90-of-middle-aged-and-older...
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The 90% is mentioned very commonly.
In Uk they made studies about this: https://www.kcl.ac.uk/news/up-to-90-of-middle-aged-and-older...