title: Letter: Additional risk from immunosuppressive therapy for rheumatoid arthritis.
mesh_terms: D001172:Arthritis, Rheumatoid / Q000628:therapy*; D001932:Brain Neoplasms / Q000150:complications*; D003520:Cyclophosphamide / Q000627:therapeutic use*; D005260:Female; D006801:Humans; D007165:Immunosuppression Therapy / Q000009:adverse effects*; D008545:Melanoma / Q000150:complications*; D008875:Middle Aged; D009362:Neoplasm Metastasis; D012878:Skin Neoplasms / Q000150:complications*
chemical_list: D003520:Cyclophosphamide