1. Cost effectiveness of shortening screening interval or extending age range of NHS breast screening programme: computer simulation study. Issue 7155 (8th August 1998) Authors: Boer, Rob; de Koning, Harry; Threlfall, Anthony; Warmerdam, Peter; Street, Andrew; Friedman, Ellis; Woodman, Ciaran Journal: BMJ Issue: Volume 317:Issue 7155(1998) Page Start: 376 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗