RT Journal Article SR Electronic T1 Helicobacter pylori eradication, duodenal ulcer healing, and gastric secretory state. JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 571 OP 571 DO 10.1136/gut.35.4.571 VO 35 IS 4 A1 J A Louw A1 I N Marks YR 1994 UL http://gut.bmj.com/content/35/4/571.1.abstract AB