title: Rheumatoid arthritis followed by systemic lupus erythematosus.
mesh_terms: D001172:Arthritis, Rheumatoid / Q000150:complications* / Q000188:drug therapy; D003520:Cyclophosphamide / Q000009:adverse effects / Q000627:therapeutic use; D006046:Gold / Q000627:therapeutic use; D006801:Humans; D008180:Lupus Erythematosus, Systemic / Q000150:complications* / Q000188:drug therapy / Q000209:etiology; D008297:Male; D008875:Middle Aged; D009503:Neutropenia / Q000139:chemically induced; D011241:Prednisone / Q000627:therapeutic use
chemical_list: D006046:Gold; D003520:Cyclophosphamide; D011241:Prednisone