1. Prevention of colorectal cancer by colonoscopic polypectomy. The National Polyp Study Workgroup;Winawer;N. Engl. J. Med.,1993
2. Significant long-term reduction in colorectal cancer mortality with colonoscopic polypectomy: findings of the National Polyp Study;Zauber;Gastroenterology,2007
3. The impact of colorectal cancer screening on life expectancy;Inadomi;Gastrointest. Endosc.,2000
4. Colonoscopy as a screening test for colorectal cancer;Schapira;Acta Gastroenterol. Belg.,2005
5. Complications of colonoscopy and flaxible sigmoidoscopy;Waye;Gastrointest. Endosc. Clin. N. Am.,1996