title: Protagonist: population based endoscopic screening for colorectal cancer.
authors.affiliation: Cancer Research UK Colorectal Cancer Unit, St Mark's Hospital, Northwick Park, Middlesex, UK. wendy.atkin@cancer.org.uk
authors.forename: W S
authors.initials: WS
authors.lastname: Atkin
authors.forename: J M A
authors.initials: JM
authors.lastname: Northover
mesh_terms: D003113:Colonoscopy; D015179:Colorectal Neoplasms / Q000517:prevention & control*; D006801:Humans; D008403:Mass Screening / Q000379:methods*; D008875:Middle Aged; D010342:Patient Acceptance of Health Care; D012812:Sigmoidoscopy; D006113:United Kingdom