Weekly Epidemiological Record, 1977, vol. 52, 50 [full issue]

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Citation
World Health Organization. (1977). Weekly Epidemiological Record, 1977, vol. 52, 50 [full issue]. Weekly Epidemiological Record = Relevé épidémiologique hebdomadaire, 52 (50), 397 - 404. https://apps.who.int/iris/handle/10665/221655
Journal
Weekly Epidemiological Record = Relevé épidémiologique hebdomadaire, 52 (50): 397 - 404Language
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