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Creator Personal Names
Smith, C. A.
Remove constraint Creator Personal Names: Smith, C. A.
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Lungs--Dust diseases--Diagnosis.
Remove constraint All Subjects: Lungs--Dust diseases--Diagnosis.
Subject Topical
Coal miners--Diseases.
Remove constraint Subject Topical: Coal miners--Diseases.
Subject Topical
Pneumoconiosis--Diagnosis.
Remove constraint Subject Topical: Pneumoconiosis--Diagnosis.
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