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Steinle S, Sleeuwenhoek A, Mueller W, Horwell CJ, Apsley A, Davis A, Cherrie JW, Galea KS.Steinle S, et al. Among authors: apsley a.Int J Hyg Environ Health. 2018 Jul;221(6):977-984. doi: 10.1016/j.ijheh.2018.03.011. Epub 2018 Mar 28.Int J Hyg Environ Health. 2018.PMID: 29861400Free article.
Apsley A, Semple S.Apsley A, et al.Tob Control. 2012 Sep;21(5):511-3. doi: 10.1136/tobaccocontrol-2011-050107. Epub 2011 Oct 20.Tob Control. 2012.PMID: 22016506