Bertoni, Neilane, Tania Maria Cavalcante, Mirian Carvalho de Souza, and Andre Salem Szklo. 2021. “Prevalence of Electronic Nicotine Delivery Systems and Waterpipe Use in Brazil: Where Are We Going?”. SciELO Preprints. https://doi.org/10.1590/1980-549720210007.supl.2.