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Walk the Even Hospital Database by book and chapter — the raw source passages that ground Ask, DDx, and the rest.

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contentuptodate· Content· item f9_35_9791

©2013 UpToDate ® Print Email Photodynamic therapy in a patient with Barrett's esophagus Segment of Barrett's esophagus two days after photodynamic therapy using Photofrin®. Courtesy of Marta Davila, MD and Jacques Van Dam, MD, PhD.