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May 12, 1945

Report upon the Work of the Miners' Phthisis Medical Bureau for the Three Years Ended 31st July, 1941

JAMA. 1945;128(2):158-159. doi:10.1001/jama.1945.02860190094029

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As heretofore, this publication contains a wealth of detail that can be appreciated only in the original. The exceptional opportunities of the bureau for continued observation of a large and relatively stable group of persons exposed to a dust of comparatively uniform composition provides one of the major sources of information on silicosis. It should always be remembered, however, that this disease varies in its local manifestations and that every detail of the conclusions is not necessarily applicable to other industries. The data demonstrate convincing evidence of the effect of a well regulated control program.

Before considering the results of the routine examinations, the report mentions several special investigations. In one based on 350 necropsies of persons previously given chest x-ray examinations it is concluded that, exclusive of chronic heart disease with pulmonary congestion, coarse miliary tuberculosis and perhaps siderosis from exposure to hematite dust, the x-ray pattern of "generalized

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