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16 март 1919 г. - commissioner of health invite international health board of rockefeller foundation to study hookworm
Описание:
- plans were agreed for 5 year demonstration in contrrol of hookworm disease
Добавлено на ленту времени:
PR Medicine Timeline
By
Lauren Acosta
9 апр 2021
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407
Дата:
16 март 1919 г.
Сейчас
~ 106 г назад
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