A popular essay on the value and present condition of the practice of vaccination : embracing a consideration of all the points important to be understood by the heads of families, and particularly of re-vaccination / by a physician.
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A popular essay on the value and present condition of the practice of vaccination : embracing a consideration of all the points important to be understood by the heads of families, and particularly of re-vaccination / by a physician. Credit: This material has been provided by the National Library of Medicine (U.S.), through the Medical Heritage Library. The original may be consulted at the National Library of Medicine (U.S.). Public Domain Mark