We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleLonger term exposure to secondhand smoke and health outcomes in COPD: impact of urine 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanol.AuthorsEisner MD; Jacob P 3rd; Benowitz NL; Balmes J; Blanc PDPublicationNicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco, 2009, Vol 11, Issue 8, p945ISSN1469-994xPublication typearticleDOI10.1093/ntr/ntp091