Smallpox = Variole

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Citation
World Health Organization. (1926). Smallpox = Variole. Weekly Epidemiological Record = Relevé épidémiologique hebdomadaire, 01 (31), 3 - 4. https://apps.who.int/iris/handle/10665/221572
Journal
Weekly Epidemiological Record = Relevé épidémiologique hebdomadaire, 01 (31): 3 - 4Language
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