title: Quality colonoscopy and effective screening for colorectal cancer.
authors.forename: David A
authors.initials: DA
authors.lastname: Nelsen
mesh_terms: D003113:Colonoscopy / Q000592:standards*; D015179:Colorectal Neoplasms / Q000175:diagnosis* / Q000517:prevention & control*; D006801:Humans; D008403:Mass Screening / Q000592:standards*; D011787:Quality of Health Care