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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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In 1864, the first barbiturate (barbituric acid) was synthesized.
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Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.
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If you could remove all of your skin, it would weigh up to 5 pounds.
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Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.