A study of brain cancer in 31 interventional cardiologists, interventional radiologists and electrophysiologists revealed that the left side of the brain was involved in 85% of the cases, according to a report in the American Journal of Cardiology. "It is difficult to prove that the incidence of brain tumors is higher because of the ionizing radiation than in the general population. But the left-side involvement is statistically significant," investigator Dr. Ariel Roguin said.

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