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During the past decade (1990-99), the number of estimated adult smokers in the state has ranged from a low of 329,587 in 1992 to a high of 386,716 in 1998

But there are 1 billion active smokers

[DOI] [PMC free article] [PubMed] [Google Scholar] 7.Dai JB, Wang ZX, Qiao ZD

Epigenetics Maternal smoking in pregnancy has also been associated with epigenetic modifications, including DNA methylation, that are implicated in deleterious changes to gene expression and processes related to growth and development [48, 49]

Perhaps even more interesting is that they compared e-cigarette exposure to traditional cigarette smoke exposure, as well as the effects of different amounts of nicotine present in e-cigarettes

Thats the only way I can describe it