 Point 7: Why there is no error bar in the control group of all bar graphs?
Point 4: Since Annexin V/7-ADD data was not convincing and the authors observed the minor increase of apoptotic cells after HCC cells were treated with combination of TTFields and sorafenib (when compared to the cells treated with TTFields and sorafenib alone), I suggest to run the WBs to examine the expression of the cleaved forms of PARP and caspase-3 (for both HCC cell lines).