Combination chemotherapy of cancer:  potentiation of carcinostatic activity of 8-azaguanine by 6-formylpteridine.
D000818:Animals; D000963:Antimetabolites; D001375:Azaguanine; D004359:Drug Therapy, Combination; D005492:Folic Acid / Q000031:analogs & derivatives; D006147:Guanine / Q000037:antagonists & inhibitors*; D009369:Neoplasms; D009374:Neoplasms, Experimental
D000963:Antimetabolites; D006147:Guanine; D005492:Folic Acid; D001375:Azaguanine
FOLIC ACID/derivatives; GUANINE/antagonists; NEOPLASMS/experimental