RT Journal Article SR Electronic T1 Campylobacter pylori and Gastroduodenal Disease JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 350 OP 351 DO 10.1136/jcp.43.4.350-f VO 43 IS 4 A1 Maddocks, Anne C YR 1990 UL http://jcp.bmj.com/content/43/4/350.6.abstract AB