There has been no substantial change in the number of adult brain tumours since mobile phone usage sharply increased in the mid-1990s, Danish scientists say.
The Danish Cancer Society looked at the rates of brain tumours among 20 to 79 year olds from Denmark, Finland, Norway and Sweden. They found that trends in cancer rates had not altered from the period before mobiles were introduced.But they say longer follow-up studies are needed. (source: news.bbc.co.uk)
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