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The massive study revealed that men who smoked one cigarette per day had a 46% of the extra risk of developing coronary heart disease than someone who smoked 20 cigarettes per day

The descriptor change occurred because the FDA banned product descriptors such as "Light," "Ultra Light" and "Mild" in 2010

For the cigarette smoking initiation analysis, the source of heterogeneity between studies was examined by conducting subgroup analyses based on age of the participants, baseline year of study, and whether the sample was a nationally representative sample or regional sample

pneumoniae and hyperlipidaemia are co-risk factors for atherosclerosis