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October 11, 1913


JAMA. 1913;61(15):1378-1382. doi:10.1001/jama.1913.04350160040015

THE RELATION OF NUTRITION TO TRANSMISSIBLE TUMORS  If one may judge by the direction which experimental work in relation to the cancer problem has taken in recent years, the greatest promise of any considerable degree of success in unraveling the secrets of these neoplasms lies in the study of the transmissible tumors of animals. The considerable experience now available in many laboratories in diverse parts of the world shows that conditions are attainable in which these tumors can be brought to quite a constant degree of virulence as measured both by the percentage of positive inoculations and by the rate of growth on a given lot of animals. But when the same growth is tried on different strains of test animals in remote places the apparent virulence of the tumors shows variations which have hitherto largely baffled all attempts at a rational explanation. We are told with respect to the

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