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[25] On the other hand, smoking lowers serum concentrations of high-density lipoprotein (HDL) cholesterol, a powerful protective factor against the development of atherosclerosis

For example, exposure was disproportionately higher among non-Hispanic blacks and those who had an income below the federal poverty level compared with non-Hispanic whites and those who had an income three or more times greater than the federal poverty level, respectively

Accumulating evidence from animal and human studies supports the view that cigarette smoking affects the composition of the intestinal microbiota (Wang et al., 2012

[82] The first law prohibiting the sale of tobacco to minors was in 1901

Federal Court of Appeal (Canada)

Before the seventeenth century, tobacco smoke was seldom breathed due to its harshness and alkalinity (Baron 1)