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Start Over Subjects Data Accuracy ✖Remove constraint Subjects: Data Accuracy Titles Medical and vital statistics, are they reliable?: read before the Philadelphia County Medical Society, March 28th, 1883 ✖Remove constraint Titles: Medical and vital statistics, are they reliable?: read before the Philadelphia County Medical Society, March 28th, 1883 Dates by Range 1850-1899 ✖Remove constraint Dates by Range: 1850-1899

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  • Medical and vital statistics, are they reliable?: read before the Philadelphia County Medical Society, March 28th, 18831