OTHMAN SALEM TUWAIRGI2022-06-022022-06-023482https://drepo.sdl.edu.sa/handle/20.500.14154/63637en-USTHE PROMOTING EFFECT OF NNN IN COMBINATION WITH SUBCARCINOGENIC DOSE OF 4- NITRQUINOLINE- N- OXIDE AND 7, 12- DIMETHYLBEN Z (A) ANTHRACENE.Thesis