AzaguanineAminopterinHypoxanthinesHypoxanthineThymidineHypoxanthine PhosphoribosyltransferaseLeptospira interrogans serovar icterohaemorrhagiaeFolic Acid AntagonistsThymidine KinaseMethylthioinosinePurinesAzauridineAntimetabolitesPentosyltransferasesMethotrexatePolyglutamic AcidSarcoma 180LeptospiraGuanineThioguanineTetrahydrofolate DehydrogenasePharmacologyInosineLeukemia L1210Hybrid CellsXanthine