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Wide Area Transepithelial sample Esophageal Biopsy combined with Computer assisted 3-Dimensial Tissue Analysis (WATS) for the detection of High Grade Esophageal Dysplasia and Adenocarcinoma: A multicenter prospective, randomized, tandem study

To evaluate the utility of the WATS system, as a potential substitute for the random sampling method that is currently recommended as an adjunct to targeted biopsy