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16 marzo 1919 anni - commissioner of health invite international health board of rockefeller foundation to study hookworm

Descrizione:

- plans were agreed for 5 year demonstration in contrrol of hookworm disease

Aggiunto al nastro di tempo:

PR Medicine Timeline

ByLauren Acosta

9 apr 2021

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406

Data:

16 marzo 1919 anni

Adesso

~ 106 years ago

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