Kathi Pierce noticed almost from birth that her son Wesley was having some problems when he had trouble breast-feeding.

It took years of trying various medical exams before Wesley was diagnosed with low-functioning autism.


Now Pierce worries about changes being considered to the definitions and diagnostic criteria of autism and other spectrum disorders.

Those proposed changes could have large ramifications for local families, said Joshua Diehl, the University of Notre Dame psychology professor who eventually told Pierce with certainty that Wesley had autism.

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