Dartmouth College researcher Timothy Pierson holds a prototype of Wanda, which is designed to establish secure wireless connections between devices that generate data. Eli Burakian/Dartmouth College hide caption

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A Fitbit Saved His Life? Well, Maybe

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Olympus, the dominant supplier of endoscopes in the U.S., agreed to pay a hefty settlement and to be supervised by an independent monitor. Kiyoshi Ota/Bloomberg via Getty Images hide caption

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Products that are regulated and taxed as medical devices include a wide range of machines and objects, including various scopes, scanners, tubing and pumps. iStockphoto hide caption

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With Special Tax Suspended, Medical Device Firms Reap Big Savings

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How Sound Reveals The Invisible Within Us

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Sen. Charles Grassley, R-Iowa, and a Democratic colleague have introduced a bill that would require drugmakers and medical device companies to disclose payments made to physician assistants and nurses who can prescribe their products. Brendan Smialowski/AFP/Getty Images hide caption

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Bayer HealthCare, of Whippany, N.J., brought Essure to market in 2002 as a nonsurgical alternative for women seeking sterilization. Bayer acknowledges the device can lead to complications, but says they are rare. Julio Cortez/AP hide caption

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Slum dwellers near Calcutta get their water from a municipal pipe. Water coming out of the tap on the left is for bathing and so is untreated. The blue Zimba chlorinator is hooked up to the tap on the right, which is used for drinking water. Courtesy of Suprio Das/Zimba hide caption

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