1. Evidence that cagA+Helicobacter pylori strains are disappearing more rapidly than cagA− strains. Issue 3 (1st March 2002) Authors: Perez-Perez, G I; Salomaa, A; Kosunen, T U; Daverman, B; Rautelin, H; Aromaa, A; Knekt, P; Blaser, M J Journal: Gut Issue: Volume 50:Issue 3(2002) Page Start: 295 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗