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Since randomized trials and prospective cohort designs on this topic are not practical given the ethical issues and the need for a large study population with extended follow-up, there is a need for well-designed retrospective studies despite the inherent limitations from recall bias and unmeasured confounding factors

Pictorial Cigarette Warnings Can Address Gaps in Public Understanding About the Negative Health Consequences of Smoking a

There was a trend toward a greater increase in adjusted PY-dependent risks of MI, stroke, and MI or stroke in subjects with earlier ages at smoking initiation

Secondhand smoke Smoking impacts your cardiovascular health and also affects the health of those around you who dont smoke