After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
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Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.
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There are approximately 3 million unintended pregnancies in the United States each year.
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There are 20 feet of blood vessels in each square inch of human skin.
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By definition, when a medication is administered intravenously, its bioavailability is 100%.
A Typical Floodplain
A typical lubrication system, showing the oil pan, oil pump, oil filter, and oil passages.
A typical open-end wrench. Note the size difference on each end and that the head is angled 15 ...
A typical fuel tank installation.
Typical port fuel-injection system, indicating the location of various components. Notice that the ...
A typical electric motor-driven AIR pump. This unit is on a Chevrolet Corvette and only works when ...