About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.
Did you know?
There are 20 feet of blood vessels in each square inch of human skin.
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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
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HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.
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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
Chocolate Agar
Open-Cake Surgery
The Primal Cuts of Pork
In the figure, a 10.0-m long bar is attached by a frictionless hinge to a wall and held ...