RT Journal Article SR Electronic T1 Gastric plasmacytoma. JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 230 OP 233 DO 10.1136/gut.10.3.230 VO 10 IS 3 A1 D H Line A1 R H Lewis YR 1969 UL http://gut.bmj.com/content/10/3/230.abstract AB