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Silicosis Among Rock Drillers, Blasters and Excavators in New York City.

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By SMITH ADELAIDE ROSS.  (Jour. of Indust. Hygiene. , Feb., 1929.).

Ann Intern Med. 1930;3(9):949-950. doi:10.7326/0003-4819-3-9-949_2
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As an occupational disease, silicosis has a long history, but it is only comparatively recently, that is to say, within the past twenty-five years, that it has received attention. In the United States the first studies of silicosis were made among the zinc miners of Missouri by Lanza and Childs, in 1917. The present study was made of 208 rock drillers, blasters and excavators in New York City for the purpose of determining the incidence of silicosis among them. Silicosis was found to be present in 118, or in 57 per cent of the men examined. Twenty-three per cent of


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