In one study, male and female Sprague-Dawley rats received nose-only exposure to the smoke of 1R4F reference cigarettes (two-second puff, one puff per minute, 35-mL puff) for two hours per day, seven days per week, for four weeks before and during mating for males, and for two weeks before mating, during mating, and through gestation day 20 for females (Carmines et al
2 , 14 These findings have also been replicated among nationally representative samples of youth in Malaysia and Thailand
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"How Menthol Alters Tobacco-Smoking Behavior: A Biological Perspective"
These changes may be to blame for the development of nicotine dependence
Types of Fake Cigarettes The term "fake cigarette" covers four very different products