LG 900G Guia Del Usuario página 170

Safety Guidelines
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 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
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
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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
RF?
The FDA is working with the
U.S. National Toxicology Program
and with groups of investigators
around the world to ensure that
high priority animal studies are
conducted to address important
questions about the effects
of exposure to radiofrequency
energy (RF). The FDA has been a
leading participant in the World
Health Organization International
Electromagnetic Fields (EMF)
Project since its inception in 1996.
An influential result of this work
has been the development of a
detailed agenda of research needs
that has driven the establishment
of new research programs
around the world. The project
has also helped develop a series