The American Society for Bariatric Surgery which had 258 members in 1998 and now lists more than 1, 100 will meet in June to discuss techniques.

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The American Society for Bariatric Surgery and the American College of Surgeons have guidelines for hospitals to follow when awarding surgical privileges, but they're unenforceable.

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Dr. Scott Shikora, president of the American Society for Metabolic and Bariatric Surgery, said he hasn't been impressed with the results.

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The American Society for Metabolic and Bariatric Surgery says that about 200, 000 people in the U.S. have weight loss surgery each year.

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