这个词是什么意思？
An antineoplastic antimetabolite with immunosuppressant properties. It is an inhibitor of TETRAHYDROFOLATE DEHYDROGENASE and prevents the formation of tetrahydrofolate, necessary for synthesis of thymidylate, an essential component of DNA.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D008727 · MeSH 2026。
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