AntimetabolitesAntimetabolites, AntineoplasticSurgical SpongesThioguanine6-MercaptopurineVidarabine Phosphate6-AminonicotinamideTetrahydrouridineTrabeculectomyFluorouracilPantothenic AcidNorleucineMethotrexateDeoxycytidineMitomycinCytarabineFloxuridinePhosphonoacetic AcidAzathioprineThymidylate SynthaseLeukemia L1210GuanineStreptomycesAntineoplastic AgentsDrug SynergismNeoplasmsTumor Cells, CulturedCell DivisionCell SurvivalAntineoplastic Combined Chemotherapy ProtocolsApoptosisCell Line