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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 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, glaucoma, 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
Section 19
170
Performance and Safety Guidelines
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