RT Journal Article SR Electronic T1 Helicobacter pylori--our knowledge is growing. JF Postgraduate Medical Journal JO Postgrad Med J FD The Fellowship of Postgraduate Medicine SP 801 OP 802 DO 10.1136/pgmj.66.780.801 VO 66 IS 780 A1 Colin-Jones, D. G. YR 1990 UL http://pmj.bmj.com/content/66/780/801.abstract AB