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 WASHINGTON (AP) - Even very low doses of radiation pose a risk of cancer over a person's lifetime, a National Academy of Sciences panel concluded. It rejected some scientists' arguments that tiny doses are harmless or may in fact be beneficial.
The findings, disclosed in a report Wednesday, could influence the maximum radiation levels that are allowed at abandoned reactors and other nuclear sites and raises warnings about excessive exposure to radiation for medical purposes such as repeated whole-body CT scans.
"It is unlikely that there is a threshold (of radiation exposure) below which cancers are not induced," the scientists said.
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