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It is difficult to obtain enough calcium without consuming milk or other dairy foods.
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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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Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.
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The horizontal fraction bar was introduced by the Arabs.
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People about to have surgery must tell their health care providers about all supplements they take.
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