University of Minnesota2007-06-192007-06-192006-05-19https://hdl.handle.net/11299/258To assess the degree of carcinogen uptake in infants aged 3 to 12 months, 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 infants exposed to ETS in their homes.en-USTobacco Smoke PollutionInfantEnvironmental ExposureReport