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Coal workers' pneumoconiosis in small underground coal mines in the United States

 

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Nov 2016522
Dec 2016800
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Mar 2017831
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Aug 20192130
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Jan 2021800
Feb 20212600
Mar 20212410
Apr 2021400
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Jun 2021100
Jul 2021110
Aug 2021100
Sep 2021200
Oct 20211700
Nov 20213000
Dec 20211000
Jan 20221510
Feb 20224400
Mar 20222400
Apr 20222200
May 20226900
Jun 20223500
Jul 20221400
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