Word: billionth
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Dates: during 2010-2019
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...world using cell phones - and more signing up every day - a strong link between mobiles and cancer could have major public-health implications. As cell phones make and take calls, they emit low-level radio-frequency (RF) radiation. Stronger than FM radio signals, these RF waves are still a billionth the intensity of known carcinogenic radiation like X-rays. (See pictures from an X-ray studio...