RT Journal Article SR Electronic T1 Effect of diet on faecal and urine urobilinogen excretion and its possible relationship to the pathogenesis of peptic ulceration. JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 183 OP 186 DO 10.1136/gut.9.2.183 VO 9 IS 2 A1 S L Malhotra YR 1968 UL http://gut.bmj.com/content/9/2/183.abstract AB