Johnson Jessica B, Affolter Kajsa E, Samadder N Jewel
Department of Medicine, Gastroenterology, Huntsman Cancer Institute and University of Utah, Salt Lake City, Utah, USA.
Clin Gastroenterol Hepatol. 2013 Aug;11(8):A22. doi: 10.1016/j.cgh.2012.08.025. Epub 2012 Aug 28.