The regulation of medical devices bears a passing resemblance to this giant version of the Rube Goldberg-style game Mouse Trap. Bill Ward/Flickr hide caption

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Bill Ward/Flickr

Doctors perform a kidney transplant operation in Spain in 2010. One in three people with kidney failure has antibodies that make it hard to receive a transplant, but a new treatment can get rid of them prior to transplant. Xurxo Lobato/Cover/Getty Images hide caption

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Xurxo Lobato/Cover/Getty Images

Treatment Boosts Survival Rates For Some Kidney Transplant Patients

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Most gases used in anesthesiology eventually end up in the atmosphere where they trap heat even more effectively than carbon dioxide. hide caption

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A CT scan of the brain shows the cerebellum, a small portion of each temporal lobe, and the sinuses. Andrew Ciscel via Wikimedia Commons hide caption

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Andrew Ciscel via Wikimedia Commons