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In 1864, the first barbiturate (barbituric acid) was synthesized.
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Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.
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It is difficult to obtain enough calcium without consuming milk or other dairy foods.
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About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.
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A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.