title: Buccal biopsy in diagnosis of Crohn's disease.
mesh_terms: D001323:Autoantibodies / Q000302:isolation & purification*; D003424:Crohn Disease / Q000175:diagnosis* / Q000276:immunology / Q000473:pathology; D005455:Fluorescent Antibody Technique; D006801:Humans; D009061:Mouth Mucosa / Q000276:immunology* / Q000473:pathology
chemical_list: D001323:Autoantibodies