https://www.selleckchem.com/pr....oducts/ins018-055-is
[This corrects the article DOI 10.1371/journal.pone.0235796.].[This corrects the article DOI 10.1371/journal.pone.0227807.].Tobacco use is a serious public health concern as it causes various deleterious health problems. The aim of this study was to determine the prevalence of tobacco use and various types of tobacco used among a population-based sample of adults 18 years and above in Qatar (residents and expatriates). The study also attempted to assess tobacco use initiation age, tobacco dependency, and to identify factor