1. Mechanisms of methotrexate action and resistance to this drug in leukemia cells;Bertino,1983
2. The parmacology and clinical of methotrexate;Jolivet;N. Engl. J. Med.,1983
3. Relative frequency and kinetic properties of transport-defective phenotypes among methotrexate-resistant L1210 clonal cell lines derived in vivo;Sirotnak;Cancer Res.,1981
4. Unstable methotrexate resistance in human small-cell carcinoma associated with double minute chromosomes;Curt;N. Engl. J. Med.,1983
5. Gene amplification and methotrexate resistance in cultured animal cells;Schimke,1983