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Safety
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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
phone 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.
5. What research is needed to decide
whether RF exposure from wireless
phones poses a health risk?
A combination of laboratory studies
and epidemiological studies of people
actually using wireless phones would
provide some of the data that are
needed. Lifetime animal exposure
studies could be completed in a few
years. However, very large numbers of
animals would be needed to provide
reliable proof of a cancer promoting
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