| http://www.w3.org/ns/prov#value | - Examples of the antimetabolites useful herein include folate antagonists such as methotrexate and trimetrexate; pyrimidine antagonists such as 5-fluorouracil, fluorodeoxyuridine, Azacitidine, cytarabine, and floxuridine; purine antagonists such as mercaptopurine, 6-thioguanine, Fludarabine, and Pentostatin; and ribonucleotide reductase inhibitors such as hydroxyurea, and are preferably orally avai
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