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January 2, 1937

Foreign Letters

JAMA. 1937;108(1):56-60. doi:10.1001/jama.1937.02780010066020

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LONDON  (From Our Regular Correspondent)Nov. 21, 1936.

The Medical Uses of Radium  The report of the Medical Research Council on the medical uses of radium summarizes important recent work. At the Royal Cancer Hospital Dr. W. V. Mayneord has investigated the problem of radium dosage and the conversion of milligram hours into roentgens. The question has not been completely settled but there is general agreement among workers that 8 roentgens represents about the dose of radiation from 1 mg. of radium element screened with 0.55 mm. of platinum at a distance of 1 cm. for one hour.

THE CARCINOGENIC ACTION OF SCREENED RADIUM  Screened radium has been shown to be capable of producing the disease for the treatment of which it is most used. This research, by Dr. Joan Ross, is based on a case in which a radium needle, used in the treatment of cancer of the breast,

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