LG GD570 - Manual (Page 33)

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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
effect if one exists. Epidemiological studies can
provide data that is directly applicable to human
populations, but ten 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 time tumors develop — if they do
— may be many, many years. The interpretation of
epidemiological studies is hampered by difficulties
in measuring actual RF exposure during day-to-day
use of wireless phones. Many factors affect this
measurement, such as the angle at which the
phone is held, or which model of phone is used.
6. What is the FDA doing to find out more about
the possible health effects of wireless phone