Summary: Mark Porter and Margaret McCartney ask whether the anonymity of a new NHS database of patient records can be guaranteed. Recent reports say that as many as 2 million people in England could be eligible for bariatric surgery; Dr Mark Porter investigates if a new gastric balloon swallowed in a capsule could be a valuable new tool for weight loss. Using botox to treat vocal dysphonia, a kind of writer's cramp for the voice. And Mark talks to gastroenterologist, Anton Emmanuel about the scale of the overuse of proton pump inhibitors, their potential side effects and what people can do if they think they should come off them.
