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Author Question: The fixed-alternative question is most useful when possible replies are well known, limited in ... (Read 27 times) |
Did you know?
In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.
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Blood is approximately twice as thick as water because of the cells and other components found in it.
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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.
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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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The horizontal fraction bar was introduced by the Arabs.