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1 ene 2009 año - 2009- Obama
Descripción:
President Obama lifts the restrictions on funding human embryonic stem cell research that was put in force by Bush in 2001.
Añadido al timeline:
The Evolution of Stem Cell Research
By
MacKenzie Holley
22 sep 2017
0
0
454
fecha:
1 ene 2009 año
Ahora mismo
~ 15 years ago
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