RT Journal Article SR Electronic T1 Small bowel biopsies in patients with iron deficiency anaemia JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 595 OP 596 DO 10.1136/gut.49.4.595 VO 49 IS 4 A1 C B PEARCE A1 H D DUNCAN A1 D SINCLAIR A1 D N POLLER YR 2001 UL http://gut.bmj.com/content/49/4/595.abstract AB