Van Bree, Chris Cyclopentenyl cytosine has biological and anti-tumour activity, but does not enhance the efficacy of gemcitabine and radiation in two animal tumour models. [electronic resource] - International journal of oncology Mar 2009 - 813-9 p. digital Publication Type: Journal Article ISSN: 1019-6439 Standard No.: 10.3892/ijo_00000207 doi Subjects--Topical Terms: AnimalsAntineoplastic Combined Chemotherapy Protocols--pharmacologyCell Line, TumorCombined Modality TherapyCytidine--analogs & derivativesCytidine Triphosphate--biosynthesisDeoxycytidine--analogs & derivativesDisease Models, AnimalDrug SynergismFemaleHumansLung Neoplasms--drug therapyMiceMice, NudeMiddle AgedPancreatic Neoplasms--drug therapyRatsRats, Inbred BNGemcitabine