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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, gioma,
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.
11. 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 effect if one
exists. Epidemiological studies can provide
data that is directly applicable to human
populations, but 10 or more years follow-up
may be needed to provide answers about
some health effects, such as cancer. This is
because the interval between the time of
exposure to a cancer-causing agent and the
Summary of Contents for SGH-E576
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