title: Letter: Some aspects of Crohn's disease.
mesh_terms: D003424:Crohn Disease / Q000150:complications*; D006801:Humans; D009912:Oral Manifestations; D012877:Skin Manifestations; D013281:Stomatitis, Aphthous / Q000209:etiology*; D014652:Vascular Diseases / Q000209:etiology