Singh Sundeep, Ladabaum Uri, Hovsepian David M, Triadafilopoulos George
Division of Gastroenterology and Hepatology, Stanford University School of Medicine, 300 Pasteur Drive, Always Building M211, Stanford, CA 94305, USA.
Dig Dis Sci. 2012 Mar;57(3):625-9. doi: 10.1007/s10620-011-1945-y. Epub 2011 Oct 22.