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Start Over Authors Young, Delos W., 1829-1874 ✖Remove constraint Authors: Young, Delos W., 1829-1874 Titles Bloodletting not necessary in the treatment of pneumonia ✖Remove constraint Titles: Bloodletting not necessary in the treatment of pneumonia Dates by Range 1850-1899 ✖Remove constraint Dates by Range: 1850-1899

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