Hamilton Matthew J, Rege Tanya A, Odze Robert D
Division of Gastroenterology, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA.
Clin Gastroenterol Hepatol. 2012 Jun;10(6):xxv. doi: 10.1016/j.cgh.2011.10.040. Epub 2011 Dec 8.