Zaluski, Daniel, et al. “Cytotoxic Activity of Ethanolic Extracts of Eleutherococcus Species Cultivated in Poland on HL60 Leukemia Cell Line”. Current Issues in Pharmacy and Medical Sciences, vol. 27, no. 1, May 2014, pp. 41-45, https://doi.org/10.2478/cipms-2014-0011.