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In 1864, the first barbiturate (barbituric acid) was synthesized.
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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
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Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.
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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.