title: Upper gastrointestinal manifestations of rheumatic diseases.
mesh_terms: D004378:Duodenal Diseases / Q000209:etiology; D004935:Esophageal Diseases / Q000209:etiology; D005767:Gastrointestinal Diseases / Q000209:etiology*; D006801:Humans; D012216:Rheumatic Diseases / Q000150:complications*; D013272:Stomach Diseases / Q000209:etiology; D013280:Stomatitis / Q000209:etiology