Here’s the original article indicating that some Wellshire Farms’ products exceeded 1,000 parts per million in independent gluten testing.

http://www.chicagotribune.com/features/lifestyle/health/chi-081120-allergens-tribune-investigation,0,506031.story?page=1

And a follow up article indicating that Whole Foods has pulled Wellshire Farms’ products from its shelves:

http://www.chicagotribune.com/news/nationworld/chi-whole_foodsdec31,0,4055580.story