Host resistance to tumor growth was studied in athymic nude mice of C57BL background. Animals were pretreated in the left hind leg by local hyperthermia, local X-irradiation, or combined local hyperthermia and X-irradiation. Twenty-four hr posttreatment, the animals were inoculated with the metastatic Lewis lung carcinoma tumor. Half of the animals in each group were inoculated in the pretreate...
