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- [4] INHIBITION OF DIHYDROFOLATE-REDUCTASE BY IMPURITIES IN METHOTREXATE ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1977, 174 (SEP): : 37 - 37
- [10] STRUCTURE OF DIHYDROFOLATE-REDUCTASE GENES IN METHOTREXATE-RESISTANT MOUSE LINES EXPRESSION OF MOUSE DIHYDROFOLATE-REDUCTASE IN ESCHERICHIA-COLI JOURNAL OF SUPRAMOLECULAR STRUCTURE, 1979, : 69 - 69