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This small paper covered book will be valuable to those who are interested in the experimental phase of cancer work, because it contains a critical analysis of the experimental background as it applies to the transplantation of various tumors and also a detailed report of the author's own experiments. Clemmesen apparently inclines toward the genetic theory of cancer transmission and therefore appears to believe that mutation is perhaps the main factor in and the best explanation of most of the observations made in experimental cancer. To radiologists this report should be interesting because in his own experiments the author has used roentgen rays to a considerable extent in order to reduce the resistance of animals to transplanted tumors.
The Influence of X-Radiation on the Development of Immunity to Heterologous Transplantation of Tumors. JAMA. 1938;111(26):2419. doi:10.1001/jama.1938.02790520075038