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Kleinjan M, van den Eijnden RJ, van Leeuwe J, Otten R, Brug J, Engels RC.Kleinjan M, et al. Among authors: otten r.Nicotine Tob Res. 2007 Nov;9(11):1109-18. doi: 10.1080/14622200701488459.Nicotine Tob Res. 2007.PMID: 17978984
van der Zwaluw CS, Otten R, Kleinjan M, Engels RC.van der Zwaluw CS, et al. Among authors: otten r.Alcohol Clin Exp Res. 2014 Mar;38(3):704-12. doi: 10.1111/acer.12291. Epub 2013 Oct 17.Alcohol Clin Exp Res. 2014.PMID: 24134200