Chessells, J. M., Leiper, A. D., Tiedemann, K., Hardisty, R. M., & Richards, S. (1987). Oral methotrexate is as effective as intramuscular in maintenance therapy of acute lymphoblastic leukaemia.

Chessells, J M., A D. Leiper, K. Tiedemann, R M. Hardisty, and S. Richards. Oral Methotrexate Is As Effective As Intramuscular in Maintenance Therapy of Acute Lymphoblastic Leukaemia. 1987.

Chessells, J M., et al. Oral Methotrexate Is As Effective As Intramuscular in Maintenance Therapy of Acute Lymphoblastic Leukaemia. 1987.