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The U.S. Pharmacopeia Medication Errors Reporting Program states that approximately 50% of all medication errors involve insulin.

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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

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In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.

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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.

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