Qadan Motaz, Clarke Sharon, Morrow Ellen, Triadafilopoulos George, Visser Brendan
Department of Surgery, Stanford University School of Medicine, 300 Pasteur Drive, Stanford, CA 94305, USA.
Dig Dis Sci. 2012 Aug;57(8):2011-5. doi: 10.1007/s10620-011-2020-4. Epub 2011 Dec 14.