title: Alterations in immunologic mechanisms in diseases of the gastrointestinal tract.
mesh_terms: D000906:Antibodies / Q000032:analysis; D000888:Antibodies, Anti-Idiotypic / Q000032:analysis; D002446:Celiac Disease / Q000276:immunology; D003424:Crohn Disease / Q000276:immunology; D005759:Gastroenteritis / Q000276:immunology; D005767:Gastrointestinal Diseases / Q000276:immunology*; D006505:Hepatitis / Q000276:immunology; D006801:Humans; D006967:Hypersensitivity / Q000276:immunology; D007074:Immunoglobulin G / Q000502:physiology; D007411:Intestinal Diseases, Parasitic / Q000276:immunology; D007437:Intrinsic Factor; D008107:Liver Diseases / Q000276:immunology; D008214:Lymphocytes; D008854:Microscopy, Electron; D010182:Pancreatic Diseases / Q000276:immunology; D014777:Virus Diseases / Q000276:immunology
chemical_list: D000906:Antibodies; D000888:Antibodies, Anti-Idiotypic; D007074:Immunoglobulin G; D007437:Intrinsic Factor