Copyright information:Taken from " Offers Radioprotection by Modulating Free Radical Flux: Role of Aryl-Tetralin Lignans"Evidence-based Complementary and Alternative Medicine 2006;3(4):503-511.Published online 21 Jun 2006PMCID:PMC1697744.© The Author (2006). Published by Oxford University Press. All rights reserved25 kGy). () Antioxidant activity of S2 in lipid phase (time-dependent study; radiation dose: 0.25 kGy). ‘a–g’ represents the results of Tukey's HSD test and significant difference. * < 0.05 for variation between fractions.