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You searched for: Creator Personal Names Lieben, Jan. Remove constraint Creator Personal Names: Lieben, Jan. Creator Personal Names Pendergrass, Eugene Percival, 1895- Remove constraint Creator Personal Names: Pendergrass, Eugene Percival, 1895- All Subjects Coal mines and mining--Pennsylvania. Remove constraint All Subjects: Coal mines and mining--Pennsylvania. Subject Topical Chest--Diseases--Research. Remove constraint Subject Topical: Chest--Diseases--Research. Subject Topical Coal mines and mining--Pennsylvania. Remove constraint Subject Topical: Coal mines and mining--Pennsylvania.

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