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Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.
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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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The horizontal fraction bar was introduced by the Arabs.
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There are 20 feet of blood vessels in each square inch of human skin.
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The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.