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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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The horizontal fraction bar was introduced by the Arabs.
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The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.