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It is the burning tobacco leaf and the numerous additives used in cigarettes that lead to lung cancer, emphysema, and other deadly diseases and cancers
However, irrespective of pre or post PSM, when smoking pack-years are 2, the corresponding OR values remain close to 1, consistent with our post-PSM findings regarding the risk of MSAP or SAP (smoking pack-years 10, OR 1.72, 95% CI 0.525.69, P = 0.374)
For these reasons, K application rates vary across the flue-cured growing regions of North Carolina