Watch-and-waitapproachversus surgicalresectionafter chemoradiotherapyforpatients withrectalcancer(theOnCoRe project):apropensity-score matchedcohortanalysis LancetOncol PublishedOnlineDecember16,2015v 2004.10,AnnalsofSurgery,Habr-Gama.eg v 265patientswithdistalrectalweretreated byCRTwith5-FU,Leucovorinand5040 cGy v Five-yearOSandDFSrateswere88% and83%inResectionGroup,100%and 92%inObservationGroupPurpose v oncologicaloutcomesbetweenwatchand waitandsurgicalresection v thesafetyofthewatch-and-waitT