D4. Government Warning, 1931b.

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D4. CANADA DEPARTMENT  OF MINES, 1931.

D4. CANADA DEPARTMENT OF MINES, 1931. Recent investigations in the field of radium poisoning have led to the conclusion that precautions are necessary even in the handling of substances of low radioactivity. The ingestion of small amounts of radioactive dust over a long period of time will cause a building up of radioactive material in the body, which eventually may have serious consequences. Lung cancer, bone necrosis, and rapid anemia are possible diseases due to the deposition of radioactive substances in the cell tissue or bone structure of the body.

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