› added 2 years ago
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TIL of The British Doctor's Study of 40,000 doctors was a 50 year long study that was the first to provide evidence of a causal link between smoking and lung cancer.
› added 2 years ago
111
TIL of The British Doctor's Study of 40,000 doctors was a 50 year long study that was the first to provide evidence of a causal link between smoking and lung cancer.