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Stefanova E, Blennow K, Almkvist O, Hellström-Lindahl E, Nordberg A.Stefanova E, et al. Among authors: almkvist o.Neurosci Lett. 2003 Feb 27;338(2):159-63. doi: 10.1016/s0304-3940(02)01384-8.Neurosci Lett. 2003.PMID: 12566177Clinical Trial.