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- catalog contributor b8423439.
- catalog created "1936.".
- catalog date "1936".
- catalog date "1936.".
- catalog dateCopyrighted "1936.".
- catalog extent "vi, 114 p.".
- catalog isPartOf "Public health bulletin no. 221".
- catalog issued "1936".
- catalog issued "1936.".
- catalog language "eng".
- catalog publisher "Washington, U.S. Govt. print. off.,".
- catalog spatial "Pennsylvania.".
- catalog subject "Coal mines and mining Pennsylvania.".
- catalog subject "Lungs Dust diseases.".
- catalog subject "Miners Diseases.".
- catalog title "Anthraco-silicosis among hard coal miners. From the Office of industrial hygiene and sanitation, Surg. R. R. Sayers, medical office in charge ... Prepared by direction of the surgeon general.".
- catalog type "text".