Review of Post-Study Clinical Endoscopy Reports in Follow Up to MAY2016-07-01

PRIMARY OBJECTIVE: I. To review clinical endoscopy reports, pathology reports, and other medical records related to standard-of-care endoscopic evaluations for all participants in the parent study, MAY2016-07-01, to determine the extent of reports of rapid progression of recurrent polyps after completion intervention and follow up under the parent protocol. OUTLINE: Patients who participated in MAY2016-07-01 undergo review of medical records.