In a study of cell phones and the risk of brain cancer, researchers studied a group of 469 people with brain cancer. They paired each person who had brain cancer with a person of the same sex, of similar
age, and the same race who did not have brain cancer. Then they compared the cell phone use for
each pair of people. The Journal of the American Medical Association published the results in 2000 in
an article titled "Handheld Cellular Telephone Use and the Risk of Brain Cancer."
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