Figure 1c:

(a) Confocal photomicrograph shows the lowest cell survival in the group receiving combination therapy (chemotherapy and RF hyperthermia), compared with those in the other three treatment groups. (b) MTS assay further shows the lowest cell viability (* = P < .0001). (c) Apoptosis analysis confirms more apoptotic cells in the combination therapy group than in the other three groups. Comp-PE-A = compensation-phycoerythrin-adjustment, Comp-FITC-A = compensation-fluorescein-isothiocyanate-adjustment, RFH = radiofrequency heat.