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Before and After antibiotics (20 ene 1944 año – 20 jul 1989 año)

Descripción:

before antibiotics 130,000 new cases, after 24,000 new cases

Añadido al timeline:

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7 dic 2018

0

0

304

fecha:

20 ene 1944 año

20 jul 1989 año

~ 45 years

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