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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
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The human body produces and destroys 15 million blood cells every second.
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On average, the stomach produces 2 L of hydrochloric acid per day.
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Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.