低劑量aspirin就有防癌效果

某種程度上的
Effect of aspirin and NSAIDs on risk and survival from colorectal cancer
Gut doi:10.1136/gut.2009.203000

Routine Aspirin or Nonsteroidal Anti-inflammatory Drugs for the Primary Prevention of Colorectal Cancer
U.S. Preventive Services Task Force (USPSTF) recommendations