Ridenbaugh, M. Y. (1890). The biography of Ephraim McDowell, M.D.: "the father of ovariotomy.". C.L. Webster and company.
Dyfyniad Arddull ChicagoRidenbaugh, Mary Young. The Biography of Ephraim McDowell, M.D.: "The Father of Ovariotomy.". New York: C.L. Webster and company, 1890.
Dyfyniad MLARidenbaugh, Mary Young. The Biography of Ephraim McDowell, M.D.: "The Father of Ovariotomy.". C.L. Webster and company, 1890.
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