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NCT01164722 2020-08-04Infrared Coagulator Ablation or Observation in Preventing Anal Cancer in HIV-Positive Patients With Anal NeoplasiaAIDS Malignancy ConsortiumPhase 3 Completed120 enrolled 13 charts
NCT00078897 2019-09-24Selenium for Prevention of Adenomatous Colorectal PolypsUniversity of ArizonaPhase 3 Terminated1,621 enrolled 12 charts