Fig 4. Area ratios of Raman peaks from spectra of control and exposed PBLM cells to EMFs at 1.8 GHz.

Difference of I₇₈₅/I₁₀₀₃ (a), I₁₀₉₂/I₁₀₀₃ (b) and I₁₅₇₈/I₁₆₁₅ (c) area ratios of Raman peaks of the control with respect to the exposed lympho-monocyte samples for different exposure time of Fig 3. The values are means ± SEM of 3–4 independent experiments (i.e. biological replicates corresponding to samples from different donors for each condition).