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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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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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Most women experience menopause in their 50s. However, in 1994, an Italian woman gave birth to a baby boy when she was 61 years old.
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On average, the stomach produces 2 L of hydrochloric acid per day.