RT Journal Article SR Electronic T1 Colonization of cagA-positive Helicobacter pylori is significantly greater in infected human males than females. A possible factor in distal gastric cancer gender difference JF Saudi Medical Journal JO Saudi Med J FD Prince Sultan Military Medical City SP 898 OP 900 VO 27 IS 6 A1 Al-Marhoon, Mohammed S. A1 Nunn, Sheila A1 Soames, Roger W. YR 2006 UL http://smj.org.sa/content/27/6/898.abstract AB