title: Etiology of inflammatory bowel diseases: are we making progress?
mesh_terms: D000818:Animals; D002415:Cats; D003093:Colitis, Ulcerative / Q000209:etiology; D003424:Crohn Disease / Q000209:etiology* / Q000382:microbiology / Q000635:transmission; D011549:Pseudomonas / Q000302:isolation & purification; D012328:RNA Viruses / Q000302:isolation & purification; D013552:Swine