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Paired sample t -tests were used on PFE, CSA, and heart rate scores between and within the nicotine and placebo conditions during the neutral and erotic film presentations, on heart rate, and systolic and diastolic blood pressure scores prior to and 30 minutes after either nicotine or placebo administration, and on subjective ratings of mood (tension, depression, anger, fatigue, confusion, vigor, total mood disturbance score), and on both potential and bogus nicotine adverse effects, between the placebo and nicotine conditions

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However, poorly regulated or black-market vaping products pose genuine risks

PubMed Central PMCID: PMC4018182