@nprofile1q... They were mutually exclusive according to the DSM for a long while, and Dr's aren't the kind of people to put any effort into learning anything new, after the amount they had to do for med school.
Really inspires confidence when you go to see them, and they only have a DSM-III on their shelf, when IV has been current for ages, and V is nearly ready for release.
Then you hear someone like Dr. Russell Barkley saying '60-70% of people with ADHD also have autism'.
If that's the case then surely the reverse is also true, and if it's that common then why isn't one automatically being tested for, after diagnosis with the other?