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Did you know?

There are 60,000 miles of blood vessels in every adult human.

Did you know?

Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

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Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

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The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.

Comparison of the steps of two viral reproductive cycles. Comparison of the steps of two viral reproductive cycles.
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Sample tiered drug formulary for antibiotics. Sample tiered drug formulary for antibiotics.
Sample prescriptions of antibiotics for dental infections. Sample prescriptions of antibiotics for dental infections.
Sample prescriptions of antibiotics for dental infections. Sample prescriptions of antibiotics for dental infections.
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Video: Oogenesis Animation

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