Comment on

• Randomized comparison of surveillance intervals after colonoscopic removal of newly diagnosed adenomatous polyps. The National Polyp Study Workgroup.

  Winawer SJ, Zauber AG, O'Brien MJ, Ho MN, Gottlieb L, Sternberg SS, Waye JD, Bond J, Schapiro M, Stewart ET, et al. Winawer SJ, et al. N Engl J Med. 1993 Apr 1;328(13):901-6. doi: 10.1056/NEJM199304013281301. N Engl J Med. 1993. PMID: 8446136 Clinical Trial.