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The cytotoxicity as expressed in CC50 (half-maximal cytotoxic concentration) and the antiviral efficacy against A/H1N1 as expressed in IC50 (half-maximal inhibitory concentration) for the studied phytochemicals. GraphPad Prism 5.01 software was used to analyze the nonlinear regression while the CC50 and IC50 were determined by plotting log inhibitor against normalized response (variable slope).
