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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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6 janv. 1930 - an efficient vaccine, or toxoid, as it is known in the cases of tetanus and diphtheria was produced against tetanus.
Ajouté au bande de temps:
Engineering 2 9/29/17
By
Josiah Valery
2 oct. 2017
0
0
872
Date:
6 janv. 1930
Maintenaint
~ Il y a 95 ans
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