Rao Satish S C, Hasler William L
Department of Medicine, Section of Gastroenterology & Hepatology, Medical College of Georgia, Georgia Health Sciences University, Augusta, Georgia.
Department of Medicine, Division of Gastroenterology, University of Michigan Health System, Ann Arbor, Michigan.
Gastroenterology. 2013 Feb;144(2):263-265. doi: 10.1053/j.gastro.2012.12.011. Epub 2012 Dec 20.