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Band vs Bypass: Easy vs Effective
Prospective Randomized Trial of Laparoscopic Gastric Bypass Versus Laparoscopic Adjustable Gastric Banding

In a high quality new study comparing the band to the RNY bypass the authors conclude that the RNY gets better weight loss but at the expense of more complications

Wouldn't it be great if there was a short simple safe operation that led to excellent weight loss...

Like the Mini (sleeve) Gastric Bypass