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Did you know?
When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
Did you know?
There are more nerve cells in one human brain than there are stars in the Milky Way.
Did you know?
Everyone has one nostril that is larger than the other.
Did you know?
Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.
Did you know?
About 100 new prescription or over-the-counter drugs come into the U.S. market every year.