does nicotine only come from tobacco Tobacco, Nicotine, Vaping Prevention Education DS26: Nicotine

By way of compensation, I think, I am conservative to the bone

*Correspondence: Chunhong Xiao, [email protected] Disclaimer All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers

As a result, every smoking session feels comfortable, consistent, and enjoyable

Third, we controlled for the SRH, SRSS, socio-demographic variables, psychological variables, biomarkers and other health-related behaviours, but there were still other possibilities we had not covered, for instance, the number of people with whom the participants may share an office or apartment and the health status of apartment mates and colleagues [62]