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Participants in clinical trials are encouraged to completely switch from cigarettes to e-cigarettes to minimize dual use, which has been shown to be harmful and may make it harder to quit tobacco use, says Maya Vijayaraghavan, MD, a professor in the Department of Medicine at the University of California San Francisco (UCSF) School of Medicine and the director of the UCSF Smoking Cessation Leadership Center

Despite the findings in the literature that suggest that these new tobacco products are less harmful than conventional cigarettes, our research suggests otherwise, indicating similar effects to those seen in conventional cigarette smokers

The set had a bench and two chairs, but we needed more

But when he is training for a competition, he could shut out an air war with his coolness and concentration

131 (3): e1009-24