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It is difficult to obtain enough calcium without consuming milk or other dairy foods.
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The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.
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Cyanide works by making the human body unable to use oxygen.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.