Influence of aspirin on prevention of colorectal cancer: an updated systematic review and meta-analysis of randomized controlled trials.
Abdullah A GhaddafMuhammad AzizMohammed S AlomariAhmed S AbdulhamidFahad A AlharbiAbdullah N MullahSyed Fasial ZaidiPublished in: International journal of colorectal disease (2021)
Overall, aspirin (particularly high dose) only reduced the risk of advanced lesions up to 5 years.