Search Constraints

You searched for: Creator Personal Names Crawford, George M. Remove constraint Creator Personal Names: Crawford, George M. Digital Content No Digital Content Remove constraint Digital Content: No Digital Content All Subjects Pneumoconiosis. Remove constraint All Subjects: Pneumoconiosis. Subject Topical Chest radiography. Remove constraint Subject Topical: Chest radiography. Subject Topical Coal miners--Diseases--Pennsylvania. Remove constraint Subject Topical: Coal miners--Diseases--Pennsylvania. Subject Topical Coal mines and mining--Pennsylvania. Remove constraint Subject Topical: Coal mines and mining--Pennsylvania.

Search Results