(Q50602818)
Statements
Prevention of colorectal cancer by once-only sigmoidoscopy. (English)
1 reference
J Cuzick
1 reference
J M Northover
1 reference
D K Whynes
1 reference
1 March 1993
1 reference
1 reference
341
1 reference
8847
1 reference
736-740
1 reference