LG KF600c Guía De Usuario página 164

Safety Guidelines
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
82
LG KF600c | User Guide
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
cancercausing
agent and the time tumors
develop - if they do- may be many,
many years. The interpretation of
epidemiological studies is hampered
by diffi culties 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.