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anestesia (20 h 28 min, 1 janv. 1842 ans – 17 h 7 min, 1 janv. 1846 ans)

Description:

varios científicos descubren que siertas sustancias quimicas pueden utilizadas como anestesicos

Ajouté au bande de temps:

mariana lopez giraldo

28 sept. 2018

0

0

934

Date:

20 h 28 min, 1 janv. 1842 ans

17 h 7 min, 1 janv. 1846 ans

~ 4 years

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