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Author Question: At certain times in the menstrual cycle, women demonstrate a preference for a mate that has the ... (Read 50 times) |
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The familiar sounds of your heart are made by the heart's valves as they open and close.
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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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In 2010, opiate painkllers, such as morphine, OxyContin®, and Vicodin®, were tied to almost 60% of drug overdose deaths.
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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
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The horizontal fraction bar was introduced by the Arabs.