RT Journal Article SR Electronic T1 Duodenal gastric heterotopia and Campylobacter pylori: an exception to the rule? JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 1111 OP 1112 DO 10.1136/jcp.42.10.1111-b VO 42 IS 10 A1 N Y Haboubi A1 G E Wilson A1 D F Martin A1 E B Faragher A1 C Goddard A1 J P Miller YR 1989 UL http://jcp.bmj.com/content/42/10/1111.2.abstract AB