title: Letter: Lipopolysaccharides in Crohn's disease.
mesh_terms: D000907:Antibodies, Bacterial / Q000032:analysis*; D003093:Colitis, Ulcerative / Q000276:immunology; D003424:Crohn Disease / Q000209:etiology* / Q000276:immunology / Q000382:microbiology; D004751:Enteritis / Q000276:immunology; D004755:Enterobacteriaceae / Q000276:immunology*; D006801:Humans; D008070:Lipopolysaccharides / Q000276:immunology*; D011135:Polysaccharides, Bacterial / Q000276:immunology*
chemical_list: D000907:Antibodies, Bacterial; D008070:Lipopolysaccharides; D011135:Polysaccharides, Bacterial