[Blastomogenic action of combined total external and local internal (131I) irradiation on adult rats].

In the combined irradiation (the total dose of the thyroid uptake--15000 rad) the total incidence of tumors was close to that in isolated X-irradiation, but their multiplicity was much higher. The incidence of thyroid tumors (16.6%) was close to that in iodine-131 administration (17.7%, the absorbed dose--11000 rad) and x-irradiation (17.5%).