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Start Over You searched for: Subjects Poland -- epidemiology Remove constraint Subjects: Poland -- epidemiology Subjects Typhus, Epidemic Louse-Borne -- epidemiology Remove constraint Subjects: Typhus, Epidemic Louse-Borne -- epidemiology Authors Bock, Carl Ernst, 1809-1874, author Remove constraint Authors: Bock, Carl Ernst, 1809-1874, author Copyright Public domain Remove constraint Copyright: Public domain Dates by Range 1850-1899 Remove constraint Dates by Range: 1850-1899

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