title: Commentary on Jarvis & Feyerabend (2015): A truly smoke-free upbringing, once rare, is now commonplace.
authors.affiliation: School of Population Health, University of Auckland, Auckland, New Zealand. a.woodward@auckland.ac.nz.
authors.forename: Alistair
authors.initials: A
authors.lastname: Woodward
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D003367:Cotinine / Q000032:analysis* / Q000378:metabolism; D003430:Cross-Sectional Studies; D004739:England; D006306:Health Surveys / Q000706:statistics & numerical data*; D006801:Humans; D012463:Saliva / Q000378:metabolism; D014028:Tobacco Smoke Pollution / Q000706:statistics & numerical data*
chemical_list: D014028:Tobacco Smoke Pollution; D003367:Cotinine
keywords: Biomarker; child health; cotinine; second-hand smoke; social class; time trends