title: Reply to Fritz and Yarze.
authors.forename: David
authors.initials: D
authors.lastname: Lieberman
authors.forename: Doug
authors.initials: D
authors.lastname: Rex
mesh_terms: D018256:Adenomatous Polyps / Q000175:diagnosis*; D003113:Colonoscopy / Q000592:standards*; D015179:Colorectal Neoplasms / Q000175:diagnosis*; D006801:Humans; D007417:Intestinal Polyps / Q000175:diagnosis*; D008403:Mass Screening / Q000592:standards*