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Creator Personal Names
Baier, Edward J.
Remove constraint Creator Personal Names: Baier, Edward J.
Creator Personal Names
Dessauer, P.
Remove constraint Creator Personal Names: Dessauer, P.
Subject Topical
Chest--Diseases.
Remove constraint Subject Topical: Chest--Diseases.
Subject Topical
Coal mines and mining--Pennsylvania.
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Subject Topical
Lungs--Dust diseases.
Remove constraint Subject Topical: Lungs--Dust diseases.
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