RT Journal Article SR Electronic T1 Understanding current guidelines for colorectal cancer screening: A case-based approach JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 441 OP 448 VO 75 IS 6 A1 Laura K. Bianchi A1 Carol A. Burke YR 2008 UL http://www.ccjm.org/content/75/6/441.abstract AB After a polyp or polyps are discovered on colonoscopy, many patients are being told to come back for repeat colonoscopy unnecessarily soon, thus diverting a scarce resource away from patients who may derive the most benefit—those with high-risk polyps and those who have never been screened.