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It is difficult to obtain enough calcium without consuming milk or other dairy foods.
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Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.
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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.
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No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.
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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.