Hatsukami, Dorothy K.Le, C.T.Shang, Y.Joseph, A.M.Mooney, M.E.Carmella, S.G.Hecht, S.S.2007-06-192007-06-192006-12-22https://hdl.handle.net/11299/129To assess the degree of compensatory smoking in those who reduce their cigarette intake, researchers at the University of Minnesota Transdisciplinary Tobacco Use Research Center (UMN TTURC)measured levels of total 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanol (total NNAL) in the urine of light smokers and of heavy smokers who reduced their cigarette use by at least 40%.en-USSmoking CessationTobacco UseCase-Control StudiesReport