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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.
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After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
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Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.
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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.