We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleMinor tobacco alkaloids as biomarkers for tobacco use: comparison of users of cigarettes, smokeless tobacco, cigars, and pipes.AuthorsJacob P 3rd; Yu L; Shulgin AT; Benowitz NLPublicationAmerican journal of public health, 1999, Vol 89, Issue 5, p731ISSN0090-0036Publication typearticleDOI10.2105/ajph.89.5.731