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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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1 ene 1958 año - 1958 - Pacemaker and artificial heart valve developed.
Añadido al timeline:
The change in medical devices and innovations
By
Dionasia Gardner
23 oct 2018
1
0
317
fecha:
1 ene 1958 año
Ahora mismo
~ 67 years ago
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