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30 déc. 1956 - Richard Doll and Bradford Hill publish their study of lung cancer

Description:

The same time that the percentage of smokers in the American population reached its all time peak (45%)

Ajouté au bande de temps:

Cancer History

ByAnna
25 sept. 2017
0
0
633

Date:

30 déc. 1956
Maintenaint
~ Il y a 68 ans
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