The programs new and innovative treatment interventions can be very helpful for those who have had difficulty quitting tobacco products in the past
Funding This study was subject to ethical standards and received an ethical approval code at Shiraz University of Medical Sciences (IR.SUMS.SCHEANUT.REC.1401.053)
Both may contain nicotine as the e-liquids used in vaping come in various nicotine strengths, which allow someone who has smoked nicotine-containing tobacco cigarettes to switch over and gradually reduce their intake over time

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