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Dumont GJ, Wezenberg E, Valkenberg MM, de Jong CA, Buitelaar JK, van Gerven JM, Verkes RJ.Dumont GJ, et al. Among authors: verkes rj.Psychopharmacology (Berl). 2008 Apr;197(3):465-74. doi: 10.1007/s00213-007-1056-9. Epub 2008 Feb 28.Psychopharmacology (Berl). 2008.PMID: 18305926Free PMC article.Clinical Trial.