A new study has found that most patients undergoing biopsy of the small intestine do not have the recommended number of samples to diagnose celiac disease. The study, published in the July 2011 issue of Gastrointestinal Endoscopy, analyzed a national database of biopsy specimens maintained by Caris Life Sciences (Irving, TX). More than 100,000 patients had a biopsy of the small intestine, but only 35 percent of them had at least four samples taken, the number recommended by professional guidelines.

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