biochemical verification of tobacco use and cessation Abstinence: 2019 Update Assessing outcome in smoking cessation
Assessing outcome in smoking cessation studies. Effectiveness of the national German quitline for smoking cessation: study protocol of a randomized controlled trial BMC Public Health Springer Nature Link Frontiers A Study Protocol for Increasing Access to Smoking Cessation Treatments for Low Income Minority Smokers Observational studies of exposure to tobacco and nicotine products: Best practices for maximizing statistical precision and accuracy ScienceDirect
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