"The Lancet" reports of the International Congresses of Hygiene and Demography : held from 1876 to 1889.
- The Lancet
- Date:
- 1891
Licence: Public Domain Mark
Credit: "The Lancet" reports of the International Congresses of Hygiene and Demography : held from 1876 to 1889. Source: Wellcome Collection.
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