LG GD570 User Manual download pdf (Page 35)

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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.

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