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Improvement in behavioural symptoms in patients with moderate to severe Alzheimer's disease by memantine: a pooled data analysis.
... Analysis of the patients without symptoms at baseline indicated reduced emergence of agitation/aggression (p = 0.002), delusions (p = 0.047), and disinhibition (p = 0.011), at week 12, and of agitation/aggression (p = 0.002),...
http://www.leaddiscovery.co.uk/articles/18058838/