This group has been involved in the study of the genotoxic effects of radiofrequency radiation (RFR) for many years. In the present study they evaluated the effect of exposing human leukocytes to RFR at 900 MHz frequency for 2 hours, The SAR was 0.3 W/kg for some experiments and 1 W/kg for others. Temperature was strictly controlled in the experiment, which was double-blinded. DNA damage was assessed by the alkaline single cell gel electrophoresis (SCGE)/comet assay. Other evidence of damage sought included structural chromosome aberrations, sister chromatid exchanges, and alteration in the kinetics of cell proliferation.

No statistically significant differences were found in exposed samples in comparison with sham exposed ones.