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July 10, 1926


Author Affiliations

From the Research Laboratory and the Department of Radiology of the Barnard Free Skin and Cancer Hospital, and the Department of Surgery, Washington University School of Medicine.

JAMA. 1926;87(2):86-90. doi:10.1001/jama.1926.02680020014004

Hopes for the proper and precise use of roentgen rays and the rays of radium depend primarily on a knowledge of their action on the tissues and means of administering them in a qualitative and quantitative manner. In previous articles1 we have outlined a method for measuring these rays in electrostatic "e" units and also a method of investigating for the first time the effects of a definitely known type or quality of roentgen-ray energy on the cells and the tissues. The roentgen ray can produce as well as destroy cancer. It has become evident, therefore, that when we know more about cancer, some of the more important effects of roentgen rays on the tissue will not only become known, but the effect of growth stimuli in general will also become unraveled. One of the most interesting peculiarities of cell stimulants is that all of them in overdoses destroy