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In 1864, the first barbiturate (barbituric acid) was synthesized.
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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 shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.
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Approximately 500,000 babies are born each year in the United States to teenage mothers.
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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.