title: Cardiac involvement in rheumatoid arthritis. An echocardiographic study.
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D001172:Arthritis, Rheumatoid / Q000150:complications*; D004452:Echocardiography; D006331:Heart Diseases / Q000150:complications*; D006801:Humans; D008875:Middle Aged; D008943:Mitral Valve / Q000503:physiopathology; D010490:Pericardial Effusion / Q000150:complications; D012218:Rheumatoid Nodule