nicotinamide and arabinoside cytosine mixed with hydroxyurea were shown to influence the relative amount of double-stranded dna in ehrlich ascites tumor cells in vitro subjected to single irradiation ( 10-30-52 gy ) and in guerin 's carcinoma in rat lungs exposed to fractionated 6 mev neutron-radiation ( 1.25 gy x 4 ) .
C0007125
ehrlich ascites tumor
C0007097
carcinoma