Lung diseases in rheumatoid arthritis.
D000402:Airway Obstruction / Q000209:etiology; D001172:Arthritis, Rheumatoid / Q000150:complications*; D002205:Caplan Syndrome / Q000209:etiology; D005356:Fibromyalgia / Q000209:etiology; D006801:Humans; D008171:Lung Diseases / Q000209:etiology*; D010996:Pleural Effusion / Q000209:etiology; D011014:Pneumonia / Q000209:etiology; D003074:Solitary Pulmonary Nodule / Q000209:etiology