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Creator Personal Names
Ortmeyer, Carl E.
Remove constraint Creator Personal Names: Ortmeyer, Carl E.
Subject Topical
Coal miners--Diseases--Pennsylvania.
Remove constraint Subject Topical: Coal miners--Diseases--Pennsylvania.
Subject Topical
Disability insurance--Pennsylvania.
Remove constraint Subject Topical: Disability insurance--Pennsylvania.
Subject Topical
Lungs--Dust diseases.
Remove constraint Subject Topical: Lungs--Dust diseases.
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