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methode Met Medline (januari 1966- december 2003) en embase (januari 1988- december 2003) werden met de zoekwoorden 'cannabis', 'marijuana', 'neuropsychological tests', 'cognition', 'ct-scan', 'mri', 'pet', 'spect' en 'brain' 29 onderzoeken gevonden.
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method When we searched Medline (January 1966 - December 2003) and embase (January 1988 - December 2003) using the key words 'cannabis', 'marijuana', 'neuropsychological test', 'cognition', 'ct-scan', 'mri', 'pet', 'spect' and 'brain', we found 29 studies in our area of interest. We selected only those neuropsychological and functional brain imaging studies in which the patients had a controlled abstinence period longer than 98 hours.
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