Smallpox = Variole

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Citation
World Health Organization. (1926). Smallpox = Variole. Weekly Epidemiological Record = Relevé épidémiologique hebdomadaire, 01 (30), 4. https://apps.who.int/iris/handle/10665/220794
Journal
Weekly Epidemiological Record = Relevé épidémiologique hebdomadaire, 01 (30): 4Language
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