Leyden Jan E, Looby Seamus, Gulmann Christian, Patchett Stephen E
Department of Gastroenterology & Hepatology, Beaumont Hospital/Royal College of Surgeons in Ireland, Dublin, Ireland.
Gut. 2010 Sep;59(9):1206. doi: 10.1136/gut.2008.167783. Epub 2010 Jun 10.