Khan Maqsood A, Patel Kevin B, March Robert J, Nooruddin Mohammed, Brown Michael D
Section of Gastroenterology, Rush University Medical Center, 1725 W. Harrison Street, Suite 207, Chicago, IL 60612, USA.
Cleve Clin J Med. 2013 Jun;80(6):363-8. doi: 10.3949/ccjm.80a.12080.