title: Immunodeficiency and the gastrointestinal tract.
mesh_terms: D000328:Adult; D000361:Agammaglobulinemia / Q000276:immunology; D001402:B-Lymphocytes / Q000276:immunology; D003093:Colitis, Ulcerative / Q000276:immunology; D003424:Crohn Disease / Q000276:immunology; D004064:Digestive System / Q000276:immunology*; D004406:Dysgammaglobulinemia / Q000276:immunology; D005767:Gastrointestinal Diseases / Q000276:immunology*; D006801:Humans; D017098:IgA Deficiency; D007153:Immunologic Deficiency Syndromes / Q000276:immunology*; D013601:T-Lymphocytes / Q000276:immunology