SANDER, O A Pulmonary emphysema and the occupational dust diseases; introduction. [electronic resource] - A.M.A. archives of industrial health Feb 1956 - 139 p. digital Publication Type: Journal Article ISSN: 0567-3933 Subjects--Topical Terms: Communicable DiseasesDustEmphysemaOccupational DiseasesPulmonary Emphysema