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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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10 oct 1935 año - Sulfa drug introduced, but not effective
Añadido al timeline:
Penicillin Timeline
By
jas
8 nov 2017
0
0
450
fecha:
10 oct 1935 año
Ahora mismo
~ 90 years ago
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