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Did you know?
Blood is approximately twice as thick as water because of the cells and other components found in it.
Did you know?
In 1864, the first barbiturate (barbituric acid) was synthesized.
Did you know?
Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
Did you know?
Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.
Did you know?
There are 60,000 miles of blood vessels in every adult human.