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Start Over Subjects Philadelphia -- epidemiology ✖Remove constraint Subjects: Philadelphia -- epidemiology Titles Additional facts and observations relative to the nature and origin of the pestilential fever ✖Remove constraint Titles: Additional facts and observations relative to the nature and origin of the pestilential fever Dates by Range 1800-1849 ✖Remove constraint Dates by Range: 1800-1849

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  • Additional facts and observations relative to the nature and origin of the pestilential fever1