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Creator Personal Names
Morgan, William Keith C.
Remove constraint Creator Personal Names: Morgan, William Keith C.
Creator Personal Names
Ortmeyer, Carl E.
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All Creators
Ortmeyer, Carl E.
Remove constraint All Creators: Ortmeyer, Carl E.
All Subjects
Lungs--Diseases.
Remove constraint All Subjects: Lungs--Diseases.
All Subjects
Pneumoconiosis--Appalachian Region.
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Subject Topical
Coal miners--Appalachian Region--Mortality.
Remove constraint Subject Topical: Coal miners--Appalachian Region--Mortality.
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