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Section 12
182
What are the results of the research done already?
The research done thus far has produced conflicting
results, and many studies have suffered from flaws in
their research methods. Animal experiments
investigating the effects of radio frequency energy (RF)
exposures characteristic of wireless phones have yielded
conflicting results that often cannot be repeated in other
laboratories. A few animal studies, however, have
suggested that low levels of RF could accelerate the
development of cancer in laboratory animals. However,
many of the studies that showed increased tumor
development used animals that had been genetically
engineered or treated with cancer-causing chemicals so as
to be pre-disposed to develop cancer in absence of RF
exposure. Other studies exposed the animals to RF for up
to 22 hours per day. These conditions are not similar to the
conditions under which people use wireless phones, so
we don't know with certainty what the results of such
studies mean for human health.
Three large epidemiology studies have been published
since December 2000. Between them, the studies
investigated any possible association between the use of
wireless phones and primary brain cancer, glioma,
meningioma, or acoustic neuroma, tumors of the brain or
salivary gland, leukemia, or other cancers. None of the
studies demonstrated the existence of any harmful health
effects from wireless phones RF exposures. However,
none of the studies can answer questions about long-term
exposures, since the average period of phone use in these
studies was around three years.