title: Chromoscopy versus conventional endoscopy for the detection of polyps in the colon and rectum.
authors.affiliation: Surgery, Sheffield Teaching Hospitals, Dept Surgery, Northern General Hospital, Herried Road, Sheffield S7, South Yorkshire, UK, S5 7AU.
authors.forename: Steven R
authors.initials: SR
authors.lastname: Brown
authors.forename: Wal
authors.initials: W
authors.lastname: Baraza