title: Border patrols and secret passageways across the intestinal epithelium: response
authors.affiliation: Depts of Medicine, Pathology and Microbiology, University of Colorado Health Sciences Center, 4200 E. 9th Ave (B168), Denver, CO 80262, USA.
authors.initials: A
authors.lastname: Vazquez-Torres
authors.initials: FC
authors.lastname: Fang