Search Constraints
You searched for:
All Subjects
Coal miners--Pennsylvania--Mortality.
Remove constraint All Subjects: Coal miners--Pennsylvania--Mortality.
All Subjects
Coal mines and mining--Pennsylvania.
Remove constraint All Subjects: Coal mines and mining--Pennsylvania.
All Subjects
Lungs--Dust diseases.
Remove constraint All Subjects: Lungs--Dust diseases.
All Subjects
Pneumoconiosis--Pennsylvania.
Remove constraint All Subjects: Pneumoconiosis--Pennsylvania.
Subject Topical
Pneumoconiosis--Pennsylvania.
Remove constraint Subject Topical: Pneumoconiosis--Pennsylvania.
1 - 2 of 2