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Author Question: If the quantity of concert tickets sold decreases by 10 percent when the price increases by 5 ... (Read 54 times) |
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.
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Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.
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The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.
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There are approximately 3 million unintended pregnancies in the United States each year.