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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.
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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
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There are approximately 3 million unintended pregnancies in the United States each year.
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The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.
![Reconnect all vacuum and air hoses and tubes. Replace any vacuum hoses that are brittle or swollen ...](https://biology-forums.com/gallery/29/medium_548020_30_05_17_4_42_37_29758653.png)
![The chorionic villus sampling technique. (a) A catheter is inserted into the uterus through the vagi](https://biology-forums.com/gallery/44/medium_6_04_02_22_4_42_39_442942087.jpeg)