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Table 2 Value of CI for non-constant combination (EU + RA) of esophagus carcinoma SK-GT-4 treated for 72 h (n = 3)

From: The synergistic effect of eucalyptus oil and retinoic acid on human esophagus cancer cell line SK-GT-4

Points

Concentration eucalyptus (µg/mL)

Concentration retinoic acid (µM/mL)

Effect

CI

1

10

5

0.59

0.20414

2

100

100

0.58

2.82187

3

1000

200

0.60

13.4156