Not true, I had no trouble finding “free” copies, some examples:
Exposure Limits: The underestimation of absorbed cell phone radiation, especially in children
Frequency of the resonance of the human sweat duct in a normal mode of operation
Potential Risks to Human Health Originating from Future Sub-MM Communication
Systems
One has to dig, sources cited are for a reason.
In the interaction of microwave radiation and human beings, the skin is traditionally considered as just an absorbing sponge stratum filled with water. This approach is justified when the impinging wavelength is greater than the dimensions of the skin layer. However, in the sub-THz band this condition is violated. In 2008, we demonstrated that the coiled portion of the sweat duct in upper skin layer could be regarded as a helical antenna in the sub-THz band. The full ramifications of what these findings represent in the human condition are still very unclear, but it is obvious that the absorption of electromagnetic energy is governed by the topology for the skin and its organelles, especially the sweat duct.