Effect of UWBR on HGM- and SFM-treated AML-12 mouse hepatocytes in the presence of ITS. HGM- and SFM-treated AML-12 mouse hepatocytes in the presence of ITS were exposed to UWB pulses for 2 h at a temp of 23°C, pulse width of 10 ns, repetition rate of 1 kHz, and applied field strength of 5–20 kV/m. Cell viability was assessed following a post-exposure incubation period of 24 h. Data in this figure indicate a biphasic relationship with regard to cell viability in serum-treated cells. The mean levels of cell viability were: 119 ± .16%, 127 ± .18%, and 147 ± .22% in .625, 1.25 and 2.5 μg ITS/mL, respectively. Bars are means ± SDs, n=2 with 32 replications per concentration. *Significantly different from control, p ≤ 0.05.