Treatment by physical methods, especially by light, has been for some time a matter of common custom among clinicians; but recent progress of medical science has opened up new pathways in radiotherapy ; especially have the Roentgen ray, radium ray, and ultraviolet ray been put on a more scientific foundation.In general, they all have a destructive action on living cells, but each has its special characteristics; in therapy it is desirable to make the best use of these special characteristics.I believe that up to the present there has not been an efficient study of the characteristics, actions and influences of the ultraviolet radiations. I determined to study their action on the cerebral cortex of rabbits. I employed to produce them, Kromayer's mercury quartz lamp, as the radiations from it consist of a very high percentage of ultraviolet rays and a low percentage of violet and blue
WAGO H. THE INFLUENCE OF THE RADIATIONS FROM KROMAYER'S MERCURY QUARTZ LAMP ON THE CEREBRAL CORTEX: (ANIMAL EXPERIMENTS). Arch Intern Med (Chic). 1917;XIX(5_I):801–810. doi:10.1001/archinte.1917.00080240120009
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