RT Journal Article SR Electronic T1 Transient elastography in chronic viral hepatitis: a critical appraisal JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 759 OP 764 DO 10.1136/gut.2010.220863 VO 60 IS 6 A1 Ana-Carolina Cardoso A1 Roberto J Carvalho-Filho A1 Patrick Marcellin YR 2011 UL http://gut.bmj.com/content/60/6/759.abstract AB