title: Pre-treatment X-rays for rheumatoid arthritis treated with methotrexate.
authors.forename: A J
authors.initials: AJ
authors.lastname: Richards
mesh_terms: D018501:Antirheumatic Agents / Q000009:adverse effects / Q000627:therapeutic use*; D001172:Arthritis, Rheumatoid / Q000188:drug therapy*; D006801:Humans; D008171:Lung Diseases / Q000000981:diagnostic imaging*; D008727:Methotrexate / Q000009:adverse effects / Q000627:therapeutic use*; D013902:Radiography, Thoracic
chemical_list: D018501:Antirheumatic Agents; D008727:Methotrexate