Epidemiologic evidence was relevant to radar (microwave) effects.
J R Goldsmith
“Four types of effects were originally reported in multiple studies: increased spontaneous abortion, shifts in red and white blood cell counts, increased
somatic mutation rates in lymphocytes, and increased childhood, testicular, and other cancers.”
“Therefore, prudent avoidance of unneeded exposures is recommended as a precautionary measure.”
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1469943/