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Creator Personal Names
Kerr, Lorin E., 1909-
Remove constraint Creator Personal Names: Kerr, Lorin E., 1909-
All Subjects
Lungs--Dust diseases.
Remove constraint All Subjects: Lungs--Dust diseases.
Subject Topical
Coal miners--Diseases.
Remove constraint Subject Topical: Coal miners--Diseases.
Subject Topical
Pneumoconiosis.
Remove constraint Subject Topical: Pneumoconiosis.
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