RT Journal Article SR Electronic T1 Guidelines for the management of iron deficiency anaemia JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 158 OP 158 DO 10.1136/gut.49.1.158 VO 49 IS 1 A1 O JOLOBE YR 2001 UL http://gut.bmj.com/content/49/1/158.abstract AB