Weekly Epidemiological Record, 1999, vol. 74, 20 [full issue]

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Citation
World Health Organization. (1999). Weekly Epidemiological Record, 1999, vol. 74, 20 [full issue]. Weekly Epidemiological Record = Relevé épidémiologique hebdomadaire, 74 (20), 157 - 164. http://www.who.int/iris/handle/10665/230803
Journal
Weekly Epidemiological Record = Relevé épidémiologique hebdomadaire, 74 (20): 157 - 164Collections
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