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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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1 ene 1930 año - --1930-- UV radiation becomes recognized as a human carcinogen (cancers)
Añadido al timeline:
Science assessment timeline
By
Matthew Lockwood
5 may 2020
0
0
298
fecha:
1 ene 1930 año
Ahora mismo
~ 95 years ago
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