Memorial Sloan Kettering doctor addresses radiation concerns

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Over the past few decades, there's been a dramatic increase in the use of tests that use radiation to take images of the body. This has some people asking questions regarding overuse from doctors on these types of exams and exposing patients to unneeded radiation.

Dr. Lawrence Dauer, clinical physicist at Memorial Sloan Kettering, explains what you need to know about the safety of these tests and what's being done to address patients' concerns.

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