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1 янв 1974 г. - Expanded Programme on Immunization

Описание:

WHA expands its immunization program to include measles, diphtheria, tetanus, tb, pertussis, and polio

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From A to Zika: Diseases and Medical Advancements Through Time

14 дек 2018

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1 янв 1974 г.

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~ 51 г назад

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