Vidarabine PhosphateAntimetabolitesFolic Acid AntagonistsPurinesAntimetabolites, AntineoplasticTrimetrexateTetrahydrouridineMethotrexateTrabeculectomyFloxuridine6-MercaptopurineThymidylate SynthaseFluorouracilLeukemia L1210Tetrahydrofolate DehydrogenasePurine NucleotidesSurgical SpongesReduced Folate Carrier ProteinMitomycinInosine MonophosphateAminopterinCytarabineThioguaninePhosphoribosyl PyrophosphatePurine NucleosidesDeoxycytidinePolyglutamic AcidAntineoplastic Agents6-AminonicotinamideDrug SynergismTetrahydrofolatesGuanineTumor Cells, CulturedPantothenic AcidPteroylpolyglutamic AcidsNorleucineFolic AcidPhosphoribosylglycinamide FormyltransferaseDrug Screening Assays, AntitumorPeptide SynthasesCell DivisionNeoplasmsFolate Receptors, GPI-AnchoredDrug ResistanceCell SurvivalPurine-Nucleoside PhosphorylasePhosphonoacetic AcidCell LineAzathioprine