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In 1864, the first barbiturate (barbituric acid) was synthesized.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
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In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.
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Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.
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