No abstract available
MeSH terms
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Animals
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Base Sequence
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Cell Line
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Cricetinae
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Cricetulus
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DNA / genetics*
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Electrophoresis, Polyacrylamide Gel
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Female
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Gene Amplification*
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Methotrexate / pharmacology
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Ovary / cytology
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Plasmids
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Simian virus 40 / genetics
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Tetrahydrofolate Dehydrogenase / genetics*
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Transfection*
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Transformation, Bacterial
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Viral Proteins / biosynthesis
Substances
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Viral Proteins
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DNA
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Tetrahydrofolate Dehydrogenase
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Methotrexate