Spiegel Adam, Patel Roshan, Pais Shireen
Department of Gastroenterology and Hepatobiliary Disease, New York Medical College, Westchester Medical Center, Valhalla, New York, USA.
Clin Gastroenterol Hepatol. 2009 Mar;7(3):A32. doi: 10.1016/j.cgh.2008.08.017. Epub 2008 Aug 16.