Clear understanding of exactly how radio frequency (RF/EMR/EMF) radiation used by mobile phones might create cellular-level changes that could lead to cancer. The Study by the U.S. National Toxicology Program (NTP) found that as the thousands of rats studied were exposed to greater intensities of RF radiation, more of them developed rare forms of brain and heart cancer that could not be easily explained away, exhibiting a direct dose-response relationship
American Scientific -How Might Cell Phone Signals Cause Cancer?
