RT Journal Article SR Electronic T1 The Splenoportal Index accurately predicted the presence of oesophageal varices in compensated cirrhosis JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 27 OP 27 DO 10.1136/ebm.14.1.27 VO 14 IS 1 YR 2009 UL http://ebm.bmj.com/content/14/1/27.abstract AB