Dr. Ed Livingston is chief of gastrointestinal surgery at the University of Texas Southwestern Medical School.

NPR: Weight-Loss Surgery: It's Not for Everyone

"Mostly it's been a discussion of the patients needing cheaper drugs and the large pharmaceutical companies wanting to maintain their prices in the U.S., " says Byron Cryer, a gastroenterologist at the University of Texas Southwestern Medical School and one of the authors of the Fosamax paper.

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