1. Ansher AF, Melton JW, Sliwinski AJ (1983) Cyclophosphamide for treatment of rheumatoid arthritis. Arthritis Rheum 26:804
2. Baltus JA, Boersma JW, Hartman AP, Vandenbroucke JP (1983) The occurrence of malignancies in patients with rheumatoid arthritis treated with cyclophosphamide: a controlled retrospective follow-up. Ann Rheum Dis 42:368
3. Bird HA, Wright V (1982) Applied drug therapy of the rheumatic diseases. Wright, Bristol
4. Buriot D, Prieur A-M (1979) Acute leukaemia in three children treated with chlorambucil for chronic juvenile arthritis. Arch franç pédiat 36:592
5. Capell HA, Daymond TJ, Dick WC (1983) Rheumatic disease. Springer, Berlin