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As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.
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Approximately one in four people diagnosed with diabetes will develop foot problems. Of these, about one-third will require lower extremity amputation.
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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The familiar sounds of your heart are made by the heart's valves as they open and close.