title: Is methotrexate oncogenic in patients with rheumatoid arthritis?
authors.forename: J M
authors.initials: JM
authors.lastname: Kremer
mesh_terms: D018501:Antirheumatic Agents / Q000009:adverse effects* / Q000627:therapeutic use; D001172:Arthritis, Rheumatoid / Q000150:complications* / Q000188:drug therapy; D006801:Humans; D008228:Lymphoma, Non-Hodgkin / Q000139:chemically induced* / Q000150:complications; D008727:Methotrexate / Q000009:adverse effects* / Q000627:therapeutic use
chemical_list: D018501:Antirheumatic Agents; D008727:Methotrexate