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Rees VW, Wayne GF, Thomas BF, Connolly GN.Rees VW, et al. Among authors: wayne gf.Nicotine Tob Res. 2007 Nov;9(11):1197-206. doi: 10.1080/14622200701648375.Nicotine Tob Res. 2007.PMID: 17978995
Carpenter CM, Wayne GF, Connolly GN.Carpenter CM, et al. Among authors: wayne gf.Addiction. 2005 Jun;100(6):837-51. doi: 10.1111/j.1360-0443.2005.01072.x.Addiction. 2005.PMID: 15918814