did the tobacco age change Opinion | Raise Smoking to 21? More Cities Raise Tobacco Age
Description
Further research is required to definitively explain the observed reduction in cigarette consumption

This may be ascribed to the fact that our patients were non-smokers since cigarette smoking may stimulate the expression of certain subunits and reduce that of others, resulting in different effects on various receptors

This can lead to less efficient, shorter, or more frustrating pumping sessions

Available here: Page RC, Beck JD
