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FDA is currently working with government, industry, and academic groups
to ensure the proper follow-up to these industry-funded research findings.
Collaboration with the Cellular Telecommunications Industry Association
(CTIA) in particular is expected to lead to FDA providing research
recommendations and scientific oversight of new CTIA-funded research
based on such recommendations.
Two other studies of interest have been reported recently in the literature:
1 Two groups of 18 people were exposed to simulated mobile phone
signals under laboratory conditions while they performed cognitive
function tests. There were no changes in the subjects' ability to recall
words, numbers, or pictures, or in their spatial memory, but they were
able to make choices more quickly in one visual test when they were
exposed to simulated mobile phone signals. This was the only
change noted among more than 20 variables compared.
2 In a study of 209 brain tumor cases and 425 matched controls, there
was no increased risk of brain tumors associated with mobile phone
use. When tumors did exist in certain locations, however, 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 statistically significant.
In summary, we do not have enough information at this point to assure the
public that there are, or are not, any low incident health problems
associated with use of mobile phones. FDA continues to work with all
parties, including other federal agencies and industry, to assure that
research is undertaken to provide the necessary answers to the
outstanding questions about the safety of mobile phones.
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