Pantech DM-P205 manual Around three years

	FDA CONSUMER UPDATE
	4. What are the results of the research done already?
	The research done thus far has produced conflicting
	results, and many studies have suffered from flaws
	in their research methods. Animal experiments
	investigating the effects of radiofrequency energy
	(RF) exposures characteristic of wireless phones have
	yielded conflicting results that often cannot be repeated
	in other laboratories. A few animal studies, however,
	have suggested that low levels of RF could accelerate
	the development of cancer in laboratory animals.
	However, many of the studies that showed increased
	tumor development used animals that had been
	genetically engineered or treated with cancer-causing
	chemicals so as to be pre-disposed to develop cancer
	in the absence of RF exposure. Other studies exposed
	the animals to RF for up to 22 hours per day. These
	conditions are not similar to the conditions under
	which people use wireless phones, so we don’t know
CH 5	with certainty what the results of such studies mean
	for human health. Three large epidemiology studies
	have been published since December 2000. Between
	them, the studies investigated any possible association
	between the use of wireless phones 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.

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