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Cyanide works by making the human body unable to use oxygen.
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People about to have surgery must tell their health care providers about all supplements they take.
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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.
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Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.