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Creator Personal Names
Morgan, William Keith C.
Remove constraint Creator Personal Names: Morgan, William Keith C.
Subject Topical
Chest radiography.
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Subject Topical
Coal miners--Diseases--Appalachian Region.
Remove constraint Subject Topical: Coal miners--Diseases--Appalachian Region.
Subject Topical
Lungs--Dust diseases.
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Subject Topical
Pneumoconiosis.
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Subject Topical
Respiratory organs--Obstructions.
Remove constraint Subject Topical: Respiratory organs--Obstructions.
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