Yung Kenny, Oviedo Jaime, Farraye Francis A, Becker James M, Andrews Charles W, Lichtenstein David
Section of Gastroenterology, Boston University Medical Center, Boston, Massachusetts 02118, USA.
Dig Dis Sci. 2005 Jun;50(6):1118-21. doi: 10.1007/s10620-005-2715-5.