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. 2020 Feb 21;11:123. doi: 10.3389/fphar.2020.00123

Table 2.

Result of combination index analysis showing fraction affected and CI value in SW620 cells.

ATO
(μM)
AA
(mM)
Fa CI AA
(mM)
ATO (μM) Fa CI
2 2 0.37 0.48 2 2 0.34 0.58
2 3 0.59 0.17 2 2.5 0.35 0.59

The CI values represent mean of three experiments. CI 0.8–0.9: slight synergism; CI 0.6–0.8: moderate synergism; CI 0.4–0.6: synergism; and CI 0.2–0.4: strong synergism. Fa, fraction affect; CI, combination index.