RT Journal Article SR Electronic T1 Erosive gastritis--does acid matter? JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 1321 OP 1322 DO 10.1136/gut.28.10.1321-a VO 28 IS 10 A1 M Guslandi YR 1987 UL http://gut.bmj.com/content/28/10/1321.2.abstract AB