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Author Question: You want to arrange 12 of your favorite CD's along a shelf. How many different ways can you arrange ... (Read 37 times) |
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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.
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Your heart beats over 36 million times a year.
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Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.
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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.