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Incorporating timing and dose-response effects, we hypothesized that: (i) smoking is associated with an increased likelihood of current and lifetime depression, (ii) a higher number of cigarettes per day is associated with more severe current depressive symptoms, (iii) an earlier age at initiation of smoking is associated with an earlier age at onset of depression, (iv) a longer time since smoking cessation is associated with a longer time since the last depressive episode, and (v) a longer time since smoking cessation is associated with reduced severity of current depressive symptoms (Fig

The cigarette brand was founded as early as 1957 and belongs to the R

An individual is more likely to develop tobacco addiction if their family members also have it

"Despite higher promotional spending, we are encouraged by Marlboro volume trends suggesting share stabilization