Perdue David G, Cass Oliver W, Milla Carlos, Dunitz Jordan, Jessurun Jose, Sharp Harvey L, Schwarzenberg Sarah J
Department of Medicine, University of Minnesota, Minneapolis, Minnesota, USA.
Dig Dis Sci. 2007 Oct;52(10):2638-42. doi: 10.1007/s10620-006-9259-1. Epub 2007 Apr 19.