RT Journal Article SR Electronic T1 Investigating for GI malignancy in iron-deficiency anaemia—the case for risk stratification JF Frontline Gastroenterology JO Frontline Gastroenterol FD BMJ Publishing Group Ltd SP 229 OP 230 DO 10.1136/flgastro-2014-100435 VO 5 IS 4 A1 Jonathon Snook YR 2014 UL http://fg.bmj.com/content/5/4/229.abstract AB