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Start Over Authors Pennsylvania. State Board of Health and Vital Statistics. ✖Remove constraint Authors: Pennsylvania. State Board of Health and Vital Statistics. Titles Proceedings of the State Sanitary Convention: held at Philadelphia, May 12, 13 and 14, 1886 ✖Remove constraint Titles: Proceedings of the State Sanitary Convention: held at Philadelphia, May 12, 13 and 14, 1886

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  • Proceedings of the State Sanitary Convention: held at Philadelphia, May 12, 13 and 14, 18861