Authors: Asa Kolterud; Ann S Grosse; William J Zacharias; Katherine D Walton; Katherine E Kretovich; Blair B Madison; Meghna Waghray; Jennifer E Ferris; Chunbo Hu; Juanita L Merchant; Andrzej A Dlugosz; Andreas H Kottmann; Deborah L Gumucio Journal: Gastroenterology Date: 2009-05-13 Impact factor: 22.682