Effect of X-rays Alone or Combined with Diethylnitrosamine on Cancer Induction in Mouse Liver

SummaryThe possible combined effects of the initiator diethylnitrosamine (DEN) with X-rays on cancer induction in infant C57BL/Cnb mice were evaluated. Preliminary data show that a dose of X-rays administered 7 days before a single injection of DEN was more effective in inducing liver nodules than when administered 7 days after DEN administration.