English vaccination and small pox statistics : with special reference to the report of the Royal Commission, and to recent small pox epidemics / by Noel A. Humphreys.
- Humphreys, Noel A.
- Date:
- [1897]
Licence: Public Domain Mark
Credit: English vaccination and small pox statistics : with special reference to the report of the Royal Commission, and to recent small pox epidemics / by Noel A. Humphreys. Source: Wellcome Collection.
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