Bourikas Leonidas A, Despott Edward J, Moorghen Morgan, Fraser Chris
Wolfson Unit for Endoscopy, St Mark's Hospital and Academic Institute, Imperial College, London, UK.
Dig Liver Dis. 2012 Nov;44(11):961. doi: 10.1016/j.dld.2012.06.001. Epub 2012 Jul 15.