title: Duration of improvement of rheumatoid arthritis after good response to cyclophosphamide treatment.
mesh_terms: D001172:Arthritis, Rheumatoid / Q000188:drug therapy*; D003520:Cyclophosphamide / Q000008:administration & dosage / Q000627:therapeutic use*; D004341:Drug Evaluation; D005500:Follow-Up Studies; D006801:Humans; D013997:Time Factors
chemical_list: D003520:Cyclophosphamide