Weekly Epidemiological Record, 1977, vol. 52, 31 [full issue]

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Citation
World Health Organization. (1977). Weekly Epidemiological Record, 1977, vol. 52, 31 [full issue]. Weekly Epidemiological Record = Relevé épidémiologique hebdomadaire, 52 (31), 253 - 260. https://apps.who.int/iris/handle/10665/221470
Journal
Weekly Epidemiological Record = Relevé épidémiologique hebdomadaire, 52 (31): 253 - 260Language
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