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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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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
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Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.