AntimetabolitesAntimetabolites, AntineoplasticTetrahydrouridineTrabeculectomySurgical Sponges6-MercaptopurineFloxuridineFluorouracilPyrimidinesThioguanineMethotrexateMitomycinVidarabine PhosphatePyrimidine Nucleotides6-AminonicotinamideDeoxycytidineLeukemia L1210CytarabinePyrimidine DimersPantothenic AcidAntineoplastic AgentsNorleucinePyrimidine NucleosidesDrug SynergismInosine MonophosphatePhosphonoacetic AcidPhosphoribosyl PyrophosphateTumor Cells, CulturedThymidylate SynthaseNeoplasmsDrug Screening Assays, AntitumorAzathioprinePurinesGuanineCell SurvivalCell DivisionFolic Acid AntagonistsStreptomycesCell LineXenograft Model Antitumor AssaysApoptosisDrug Evaluation, PreclinicalAntineoplastic Combined Chemotherapy ProtocolsDeoxyribonuclease (Pyrimidine Dimer)Pyrimidine PhosphorylasesOrotic AcidCell CycleUracilUltraviolet RaysKineticsOrotate PhosphoribosyltransferaseDihydroorotaseDeoxyribodipyrimidine Photo-LyaseUridineCell Line, TumorLeukemia P388Antibiotics, AntineoplasticAspartate CarbamoyltransferasePurine NucleotidesCarbamoyl-Phosphate Synthase (Glutamine-Hydrolyzing)Uridine PhosphorylaseCytidineSarcoma 180Mice, NudeOrotidine-5'-Phosphate DecarboxylaseNeoplasms, ExperimentalNeoplasm TransplantationDihydroorotate OxidaseUridine KinaseMelanoma, Experimental