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. 2013 Nov 28;44(2):377–384. doi: 10.3892/ijo.2013.2192

Table I.

Calculation for the combination of SBL and TRAIL.

Combination index (CI)
SBL (0.5 μM) TRAIL (1 ng/ml)
0.63 0.68

CI values of >1 and <1 indicate drug antagonism and synergism, respectively.