ecrin-mdr-crcClinical2021colorectal cancerColorectal CancerObservationalhttps://newmdr.ecrin.org/Study/2741181China11ECRIN MDRNot yet recruitingfalseAspirin in preventing recurrence of colorectal cancer in the elderly and its safetyInterventions: case series:No Primary outcome(s): Progression free survival Study Design: Sequential2021-11-152741181ChiCTR2100052376