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LOW PREVALENCE OF BARRETT'S ESOPHAGUS IN A RISK AREA FOR ESOPHAGEAL CANCER IN SOUTH OF BRAZIL. https://t.co/5aP6nPsOzo
LOW PREVALENCE OF BARRETT'S ESOPHAGUS IN A RISK AREA FOR ESOPHAGEAL CANCER IN SOUTH OF BRAZIL. https://t.co/5aP6nPsOzo