Cheung V T F, Joshi D, Amin Z, Webster G J
Department of Gastroenterology, University College Hospital, London, UK.
Department of Imaging, University College Hospital, London, UK.
Gut. 2014 Oct;63(10):1626, 1625. doi: 10.1136/gutjnl-2014-306987. Epub 2014 May 28.