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Author Question: The critical value for assessing the difference between two proportions at the 0.05 level is 1.96. (Read 22 times) |
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Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).
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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
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Illicit drug use costs the United States approximately $181 billion every year.
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In 1864, the first barbiturate (barbituric acid) was synthesized.
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Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.