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Scholey, A., Kennedy, D. & Wesnes, K. The psychopharmacology of herbal extracts: issues and challenges. Psychopharmacology 179, 705–707 (2005). https://doi.org/10.1007/s00213-004-2062-9
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DOI: https://doi.org/10.1007/s00213-004-2062-9