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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

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Yes, especially if you will be smoking them for a long time

Pairing NRT products together will likely have a stronger impact

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(2020), US cannabis might top shelf, but Canada is the export king For now, Colorado Public Radio News, 5 January 2020,