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McEwen A, Preston A, West R.McEwen A, et al.Addiction. 2002 May;97(5):595-7. doi: 10.1046/j.1360-0443.2002.00113.x.Addiction. 2002.PMID: 12033660Clinical Trial.
Ussher M, West R, McEwen A, Taylor A, Steptoe A.Ussher M, et al. Among authors: mcewen a.Addiction. 2003 Apr;98(4):523-32. doi: 10.1046/j.1360-0443.2003.00346.x.Addiction. 2003.PMID: 12653822Free article.Clinical Trial.
McEwen A, West R.McEwen A, et al.J R Coll Physicians Lond. 1999 Nov-Dec;33(6):513-5.J R Coll Physicians Lond. 1999.PMID: 10633326Free PMC article.No abstract available.