RecruitingEvaluating Adenoma Recurrence After Endoscopic Mucosal Resection With Margin Marking or Post Treatment With Snare Tip Soft CoagulationNon-inferiority trial comparing the recurrence rate of adenomas in non-pedunculated colonic lesions following endoscopic mucosal resection with margin marking (EMR-MM) and endoscopic mucosal resection with thermal margin ablation (EMR-STSC)