Sengupta, Neil Salvage cryotherapy after failed radiofrequency ablation for Barrett's esophagus-related dysplasia is safe and effective. [electronic resource] - Gastrointestinal endoscopy Sep 2015 - 443-8 p. digital Publication Type: Journal Article ISSN: 1097-6779 Standard No.: 10.1016/j.gie.2015.01.033 doi Subjects--Topical Terms: Adenocarcinoma--pathologyAdenocarcinoma in Situ--pathologyAgedBarrett Esophagus--pathologyCatheter AblationCohort StudiesCryosurgery--methodsEsophageal Neoplasms--pathologyEsophagoscopy--methodsFemaleHumansMaleMiddle AgedRetrospective StudiesSalvage Therapy--methodsTreatment FailureTreatment Outcome