BenQ Mobile GmbH & Co. OHG A31A Manuel D’Utilisation

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they were more likely to be on the side 
of the head where the mobile phone 
was used. Because this occurred in only 
a small number of cases, the increased 
likelihood was too small to be statisti-
cally significant.
4
In summary, we do not have enough in-
formation at this point to assure the pub-
lic that there are, or are not, any low inci-
dent health problems associated with use 
of mobile phones. FDA continues to work 
with all parties, including other federal 
agencies and industry, to assure that re-
search is undertaken to provide the nec-
essary answers to the outstanding ques-
tions about the safety of mobile phones.
What is known about cases of human cancer 
that have been reported in users of hand-held 
mobile phones?
Some people who have used mobile 
phones have been diagnosed with brain 
cancer. But it is important to understand 
that this type of cancer also occurs 
among people who have not used mobile 
phones. In fact, brain cancer occurs in the 
U.S. population at a rate of about 6 new 
cases per 100,000 people each year. At 
that rate, assuming 80 million users of 
mobile phones (a number increasing at a 
rate of about 1 million per month), about 
4800 cases of brain cancer would be ex-
pected each year among those 80 million 
people, whether or not they used their 
phones. Thus it is not possible to tell 
whether any individual's cancer arose be-
cause of the phone, or whether it would 
have happened anyway. A key question is 
whether the risk of getting a particular 
form of cancer is greater among people 
who use mobile phones than among the 
rest of the population. One way to an-
swer that question is to compare the us-
age of mobile phones among people with 
brain cancer with the use of mobile 
phones among appropriately matched 
people without brain cancer. This is called 
a case-control study. The current case-
control study of brain cancers by the Na-
tional Cancer Institute, as well as the fol-
low-up research to be sponsored by in-
dustry, will begin to generate this type of 
information.
What is FDA's role concerning the safety of 
mobile phones?
Under the law, FDA does not review the 
safety of radiation emitting consumer 
products such as mobile phones before 
marketing, as it does with new drugs or 
medical devices. However, the agency 
has authority to take action if mobile 
phones are shown to emit radiation at a 
level that is hazardous to the user. In such 
a case, FDA could require the manufactur-
ers of mobile phones to notify users of 
the health hazard and to repair, replace or 
recall the phones so that the hazard no 
longer exists. 
Although the existing scientific data do 
not justify FDA regulatory actions at this 
time, FDA has urged the mobile phone in-
dustry to take a number of steps to assure 
public safety. The agency has recom-
mended that the industry:
• Support needed research into possible 
biological effects of RF of the type emit-
ted by mobile phones;
• Design mobile phones in a way that 
minimizes any RF exposure to the user 
that is not necessary for device func-
tion; and
• Cooperate in providing mobile phone 
users with the best possible informa-
tion on what is known about possible 
effects of mobile phone use on human 
health.
• At the same time, FDA belongs to an in-
teragency working group of the federal 
agencies that have responsibility for 
different aspects of mobile phone safe-
ty to ensure a coordinated effort at the 
federal level. These agencies are:
• National Institute for Occupational 
Safety and Health
• Environmental Protection Agency
• Federal Communications Commission