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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
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One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.
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Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.
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Cyanide works by making the human body unable to use oxygen.
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The horizontal fraction bar was introduced by the Arabs.