1. Variation between observers in describing mucosal appearances in practocolitis;Baron, J.H.; Connell, A.M.; Lennard-Jones, J.E.;Brit. med. J,1964
2. The use of inhalational analgesia during fibre-optic colonoscopy;Bennett, J.A.; Salmon, P.R.; Branch, R.A.; Baskett, P.J.F.; Read, A.E.;Anaesthesia,1971
3. Do adenomatous polyps of the colon become malignant?;Castleman, B.; Krickstein, H.I.;New Engl. J. Med,1962
4. Fibre-endoscopy of the intestines;Classen, M.;Gut,1971
5. Clinical evaluation of a new fibreoptic colonoscope;Dean, A.C.B.; Shearman, D.J.C.;Lancet,1970