PT - JOURNAL ARTICLE AU - J C ATHERTON TI - CagA, the<em>cag</em> pathogenicity island and<em>Helicobacter pylori</em>virulence AID - 10.1136/gut.44.3.307 DP - 1999 Mar 01 TA - Gut PG - 307--308 VI - 44 IP - 3 4099 - http://gut.bmj.com/content/44/3/307.short 4100 - http://gut.bmj.com/content/44/3/307.full SO - Gut1999 Mar 01; 44