Wesołowska A, Nikiforuk A, Michalska K, Kisiel W, Chojnacka-Wójcik E. Analgesic and sedative activities of lactucin and some lactucin-like guaianolides in mice. J Ethnopharmacol. 2006, 107 (2): 254–8. PMID 16621374. doi:10.1016/j.jep.2006.03.003.
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Wesołowska A, Nikiforuk A, Michalska K, Kisiel W, Chojnacka-Wójcik E. Analgesic and sedative activities of lactucin and some lactucin-like guaianolides in mice. J Ethnopharmacol. 2006, 107 (2): 254–8. PMID 16621374. doi:10.1016/j.jep.2006.03.003.