RT Journal Article SR Electronic T1 Elastography for the non-invasive assessment of liver disease: limitations and future developments JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 1171 OP 1172 VO 58 IS 8 A1 Cross, T J S A1 Mitchell, J D A1 Cramp, M E YR 2009 UL http://gut.bmj.com/content/58/8/1171.3.abstract AB