RATIONALE: Chemoprevention therapy is the use of certain drugs to try to prevent the development or recurrence of cancer. The use of aspirin and/or folic acid may be effective in preventing recurrent polyps in patients who have had polyps removed previously. PURPOSE: Randomized clinical trial to determine the effectiveness of aspirin and/or folic acid in preventing the recurrence of colorectal polyps.
May 31,1997
All
N/A
75 Years
N/A
75 Years
