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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

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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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By definition, when a medication is administered intravenously, its bioavailability is 100%.

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One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.

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Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

(a) Mechanisms of action for direct cholinergic agonists. Direct cholinergic agonists can act by two ... (a) Mechanisms of action for direct cholinergic agonists. Direct cholinergic agonists can act by two ...
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Chickenpox rash. (Centers for Disease Control and Prevention [CDC]/Ann Cain) Chickenpox rash. (Centers for Disease Control and Prevention [CDC]/Ann Cain)
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Write the following in standard form Write the following in standard form
Video: Evolutionary tree of life Animation

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