The British Doctors' Study was a prospective cohort study which ran from 1951 to 2001, and in 1956 provided convincing statistical evidence that tobacco smoking increases risk of lung cancer. == Context == Although there had been suspicions of a link between smoking and various diseases, the evidence for this link had been largely circumstantial.
The British Doctors' Study was a prospective cohort study which ran from 1951 to 2001, and in 1956 provided convincing statistical evidence that tobacco smoking increases risk of lung cancer. == Context == Although there had been suspicions of a link between smoking and various diseases, the evidence for this link had been largely circumstantial.
Source: Wikipedia "British Doctors Study" · CC BY-SA 4.0
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