Kalaitzakis Evangelos, Sturgess Richard
Department of Gastroenterology, Aintree University Hospital, Liverpool, United Kingdom, and Institute of Internal Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
Gastrointest Endosc. 2011 Aug;74(2):409-10. doi: 10.1016/j.gie.2011.03.1123. Epub 2011 May 6.