Spector, T Attenuation of the antitumor activity of 5-fluorouracil by (R)-5-fluoro-5,6-dihydrouracil. [electronic resource] - Cancer research Mar 1995 - 1239-41 p. digital Publication Type: Journal Article ISSN: 0008-5472 Subjects--Topical Terms: AnimalsDrug InteractionsFemaleFluorouracil--analogs & derivativesNeoplasms, Experimental--drug therapyRatsRats, Inbred F344