Cell viability analyzed by flow cytometry using double staining with AV/PI. Schematic representation of the percentage of viable cells (VC), in initial apoptosis (EAC), in late apoptosis/necrosis (LAC/NC), and necrosis (NC) after incubation with doxorubicin (a), epirubicin (b), cisplatin (c), and flutamide (d). Data express the mean and standard deviation of three independent experiments.