title: Clarifying the causes of Crohn's.
mesh_terms: D000818:Animals; D001424:Bacterial Infections / Q000209:etiology; D015415:Biomarkers; D003424:Crohn Disease / Q000209:etiology* / Q000628:therapy; D005544:Forecasting; D006801:Humans; D018417:Th1 Cells / Q000378:metabolism*; D014409:Tumor Necrosis Factor-alpha / Q000378:metabolism; D014777:Virus Diseases / Q000209:etiology
chemical_list: D015415:Biomarkers; D014409:Tumor Necrosis Factor-alpha