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You searched for: Creator Personal Names Beatty, J. A. Remove constraint Creator Personal Names: Beatty, J. A. Creator Personal Names Dessauer, P. Remove constraint Creator Personal Names: Dessauer, P. All Subjects Coal miners--Diseases--Pennsylvania. Remove constraint All Subjects: Coal miners--Diseases--Pennsylvania. Subject Topical Pneumoconiosis. Remove constraint Subject Topical: Pneumoconiosis. Subject Topical Respiratory organs--Obstructions. Remove constraint Subject Topical: Respiratory organs--Obstructions.

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