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25 agos 1924 año - 1924: Albert Calmette y Camille Guerin BCG Bacilo atenuado de tuberculosis después de 200 pases
Añadido al timeline:
HIS MIC res
By
Adriana Bernal
24 ene 2018
0
0
529
fecha:
25 agos 1924 año
Ahora mismo
~ 99 years ago
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