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Author Question: Of the thousands of species of marine fish, crustaceans, and molluscs, fewer than 500 species are ... (Read 135 times) |
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Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.
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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
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The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.