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Sayyah M, Hadidi N, Kamalinejad M (June 2004). "Analgesic and anti-inflammatory activity of Lactuca sativa seed extract in rats". Journal of Ethnopharmacology. 92 (2–3): 325–9. doi:10.1016/j.jep.2004.03.016. PMID15138019.
Rollinger JM, Mocka P, Zidorn C, Ellmerer EP, Langer T, Stuppner H (September 2005). "Application of the in combo screening approach for the discovery of non-alkaloid acetylcholinesterase inhibitors from Cichorium intybus". Current Drug Discovery Technologies. 2 (3): 185–93. doi:10.2174/1570163054866855. PMID16472227.