There are approximately 3 million unintended pregnancies in the United States each year.
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The average adult has about 21 square feet of skin.
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Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.
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The horizontal fraction bar was introduced by the Arabs.
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Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.
The Eudicot Leaf (Part 1)
A, Normal intravertebral disk; B, herniated disk.
How to use L’Hospital’s Rule to find the limit of a function (Part 3)
How to convert between imperial and metric units (Part 2)