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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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18 abr 1854 año - Snow transition of Cholera 1854
Descripción:
Considered the father of epidemiology for tracing outbreak of cholera
Añadido al timeline:
B HLTH 224
By
Johnny
14 dic 2018
1
0
517
fecha:
18 abr 1854 año
Ahora mismo
~ 171 years ago
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