| http://www.w3.org/ns/prov#value | - However, ???we live in a sea of radiation,??? Hudson says, with natural sources of ionizing radiation including cosmic rays, bananas, and minerals that can appear in products such as cat litter. ???So in order to assess relative risk, researchers need to accurately measure the exposures from such systems and compare those measurements to other exposures to ionizing radiation,??? he continues.
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