00941cam a22002531  4500001001300000003000400013005001700017008004100034010001700075035001900092040004100111042001200152050001700164110009800181245008400279260004300363300001800406500007100424650004400495650004200539650004100581710004800622999001700670l  19000041 DLC20260227111527.0790921s1919    dcu          f000 0 eng c  al  19000041   a(OCoLC)5396956  aU.S. Dept. of labor. Libr.cOCldDLC  apremarc00aRC313.A2bN32 aNational Tuberculosis Association.bCommittee on mortality from tuberculosis in dusty trades.00aPreliminary report of Committee on mortality from tuberculosis in dusty trades.  aWashington,bGovt. print. off.,c1919.  a27 p.c22 cm.  aAt head of title: U.S. Dept. of labor. Working conditions service. 0aTuberculosiszMortalityzUnited States. 0aOccupational diseaseszUnited States. 0aLungsxDust diseaseszUnited States.1 aUnited States.bWorking conditions service.  c35542d35542