All additional data relevant to the main results of this study are available within the article and Supplementary Information
Conclusion A positive non-linear doseresponse relationship is confirmed between all smoking intensity, pack-years of smoking, smoking duration(years) and the risk of bladder cancer, but the plateau only occurred when smoking intensity reached 20 cigarettes/day
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Landons career spanned televisions transition away from tobacco industry influence
We were interested in investigating the role of changes in smoking habits on the incidence of cancer, and in particular we wanted to answer the hypothetical question: Suppose smoking cessation were completely effective and smoking was entirely eliminated as a cause of cancer