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We read with great interest the leading article by Tremosini and coworkers in Gut (2012 doi:10.1136/gutjnl-2011-301951) on the prospective validation of an immunohistochemical panel (glypican 3, heat shock protein 70 and glutamine synthetase) in liver biopsies for …
Competing interests None.
Patient consent Obtained.
Ethics approval This study was conducted with the approval of the St Mary's Hospital Research Ethics Committee, Nanjing Medical University Hospital Ethics Committee, and Peking University People's Hospital Ethics Committee, respectively.
Provenance and peer review Not commissioned; externally peer reviewed.
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