timeline of quitting chewing tobacco Tobacco-Free: A 7-Step Blueprint for Quitting Tobacco — Grays Harbor

In many countries in South East Asia, the betel chewing tradition has decreased or you can find it only in villages

Flavored Tobacco Product Use Among US Youth Aged 12-17 Years, 2013-2014

A cotinine drug test is specifically designed to detect nicotine use

Green MJ, Hilton S

[DOI] [PMC free article] [PubMed] [Google Scholar] 24.Chambers RC, Mercer PF

For our sample, we found that peer influence effects were greater for pupils with higher eigenvector centralities, higher closeness centralities, and in school networks with less heterogeneous degree distributions as defined by the school network Gini degree coefficient (i.e., networks in which individuals had similar numbers of connections) (Gini, 1912