Zwanzig briefe über menschenpocken- und kuhpocken-impfung / Gemeinverständliche darstellung der "impffrage" von prof. dr. A. Kussmaul.
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Zwanzig briefe über menschenpocken- und kuhpocken-impfung / Gemeinverständliche darstellung der "impffrage" von prof. dr. A. Kussmaul. Credit: This material has been provided by the Harvey Cushing/John Hay Whitney Medical Library at Yale University, through the Medical Heritage Library. The original may be consulted at the Harvey Cushing/John Hay Whitney Medical Library at Yale University.. Public Domain Mark