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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?
Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
Did you know?
People about to have surgery must tell their health care providers about all supplements they take.
Did you know?
By definition, when a medication is administered intravenously, its bioavailability is 100%.
Did you know?
There are over 65,000 known species of protozoa. About 10,000 species are parasitic.